The Food Chain

Ruth Alexander gathers the most useful, actionable nutrition advice from our episodes of 2025 to help set you up for 2026. Things like how to nourish your brain, keep an eye on portion sizes, and why it’s important to focus on fibre. Experts from around the world tell us about the small tweaks that can make a real difference to how we eat, think, and feel.

Producer: Izzy Greenfield Sound mixing: Hal Haines

(Photo: a person looks at a variety of foods, Credit: Getty Images)

Food is at the centre of family life – on ordinary days, in the everyday rush, during the dramas, and the quieter moments too.

In this episode, Ruth Alexander looks back at some of The Food Chain's most moving and intimate moments of 2025, all revealing the power food has to bind people together.

From the first meal taken by a foster child in an unfamiliar home to the couple cooking together for the first time in their lives after a dementia diagnosis, these stories show how food has the capacity to strengthen family bonds and how its absence can shape a life just as deeply.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Producer: Rumella Dasgupta.

With the festive season approaching in parts of the world, Ruth Alexander explores what’s actually happening in the body during a hangover, why some people suffer more than others, and whether common remedies make any real difference.

How the body processes alcohol and why that can make you feel so bad is explained by Andrew Scholey, Professor of Human Psychopharmacology at Northumbria University in the UK and member of the Alcohol Hangover Research Group.

Marisa Moll, a registered nutritionist from Paraguay, shares her recommendations on what to consume before you drink alcohol to try to reduce the risk of a hangover.

And Jonathon Shears, Professor of English Literature at Keele University in the UK and author of The Hangover, a Literary and Cultural History, reflects on the cultural history of the hangover.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk.

Producer: Izzy Greenfield Sound engineer: Andrew Mills Image: A woman looks at empty bottles of alcohol (credit: Getty)

***This programme contains conversations about disordered eating which some listeners may find upsetting*** Social media is awash with nutritional misinformation with foods often cast as superheroes or villains. So how can we separate fact from fiction? And how can we know what posts we can trust?

Social media loves to portray some foods, like carbs, sugar and seed oils as villains, to be avoided at all costs.Other food groups like protein are often claimed to be food heroes and some social media influencers tell their followers to prioritise those foods and cut out others. Ruth Alexander looks at the truth of some of those claims and the impact it can have on those who believe them and end up restricting their diets as a result.

Cecile Simmons tells Ruth how she "fell down the rabbit hole" and ended up cutting out dozens of foods in an attempt to cure a skin condition.

Personal trainer and nutrition expert Michael Ulloa explains how he's made it his mission to fight food misinformation online. Plus Ruth hears from Dr Emily Denniss, registered public health nutritionist and lecturer at Deakin University in Australia, who has studied the spread of food misinformation on social media. And with the help of US based registered dietician Grace Derocha, Ruth separates food fact from food fiction.

Producer: LexyO'Connor Sound engineer: Gareth Jones

(Image: A comic book cartoon of a blond, muscle-superhero in a blue suit and yellow cape is flying through the air towards a baddie in a red suit with their fists outstretched as if ready to fight. Credit: Yogysic/Getty Images)

How do you eat well in freezing the cold? When you live in some of the coldest places on earth, what you eat, and how much, really matters.

Ruth Alexander hears advice from a scientist, who goes on expeditions to study the body’s reaction to sub-zero temperatures, and talks to people living in the Arctic circle.

What do they cook, and what is their favourite food and drink to keep them warm in the winter? She hears how they find fresh ingredients when all around the ground is frozen – and how freezing temperatures can spark culinary creativity.

Producer: Julia Paul and Lexy O'Connor Sound engineer: Hal Haines

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Ruth Alexander explores the art and etiquette of tipping and how it varies around the world.

She hears from staff and customers in countries where tipping is essential and in places where it can be taken as an insult.

Ruth also talks to servers and bartenders about what your gratuity means to them and how tipping can sometimes bring out the best and worst in their customers.

Producer: Lexy O’Connor and Rumella Dasgupta

Sound mixing: Hal Haines

Image: A jar full of coins and notes has the word “tips” written on it. It floats on a red background. Credit: Nikola Stojadinovic / Getty

What are the highs and lows of waiting on tables? Ruth Alexander speaks to restaurateurs from London, New York and Mumbai to find out about the inner workings of one of the hardest jobs in the business.

Ruth hears from French celebrity Maitre D, Fred Siriex, Mumbai based restaurateur Gauri Devidayal and Michael Cecchi-Azzolina, the New York based author of Your Table Is Ready. If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Image: The torso of a waitress, carrying two plates of food, against a purple background. Credit: Maria Korneeva/Getty Images)

From pizza delivery to emergency aid, are autonomous aircraft the future?

Ruth Alexander looks into whether drones are a feasible alternative to delivery drivers and traditional air drops.

We hear how fast food and groceries are being delivered into suburban back gardens in Helsinki and Dublin and to a waterside collection point in Hong Kong. Is this technology something we might see everywhere soon? Ruth looks at its advantages and limitations and finds out how drones are carrying essential food to remote communities in Madagascar.

Taking part were Danny Vincent, BBC Hong Kong reporter, Ville Lepalä, the CEO and co-founder of Huuva foodhall, Bobby Healy, the CEO of Manna Aero, Santanu Chakraborty, chief executive officer of Bal Raksha Bharat – Save the Children India and Hedley Tah from the United Nations Humanitarian Air Service, which is run by the World Food programme.

Produced by Rumella Dasgupta.

Image: A drone is flying against a stylised blue sky background. It is holding a white box which says Food Delivery on it in black letters. (Credit Getty Images/ sarawuth702)

Turmeric has been revered for thousands of years, not just for its mellow taste but for its golden colour and its supposed health giving properties.

Rumella Dasgupta looks at its history, its uses in food and medicine and talks to scientists who have studied the spice. She finds out what they've learned about its fabled medicinal qualities and whether it's really worth paying for expensive turmeric lattes and turmeric supplements.

Featuring Dr Kathryn Nelson, Prof Amit Garg, Ragini Kayshap and Seema and Sarla Nagpaul.

If you would like to get in touch with the show, please email thefoodchain@bbc.co.uk

Producer: Lexy O'Connor Sound mix by Annie Gardiner

(Image: a teaspoon of golden turmeric powder sits on a spoon, against a bright green background. Credit: G/ Getty Simonkr)

You've got to be full of passion to make it as a top chef. It's a highly skilled and physically demanding job that comes with long hours.

Ruth Alexander talks to three celebrated and talented chefs from three different continents about the highs and lows of their careers. They tell Ruth why they love the job so much and whether chef culture has changed in the years they've been working in kitchens.

Featuring May Chow, Chantel Dartnall and Sean Kenworthy. If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk Image: A chef in a white jacket sharpens a big knife in a professional kitchen. Credit: Getty images / Fertnig.

For millions of us around the world, the day hasn't begun until we've had our first cup of coffee.

Ruth Alexander traces our love affair with coffee back through history, to the wilds of Ethiopia where it was first discovered. She experiences some of the ancient traditions built around coffee which still endure today and asks why this bitter drink has always had such a hold over us.

And does it matter if we enjoy a coffee or three every day? Ruth finds out what's it doing to our brains and bodies, and whether we really need to worry about kicking this ancient habit.

Produced by Lexy O'Connor

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Image: Three roasted coffee beans float on a light green background. Credit: Getty/Jose A. Bernat Bacete

Pepper is ubiquitous at the dining table, but arguably most of us don’t know much about it.

In this programme John Laurenson finds out about the pepper plant – how it is grown and harvested and the range of flavours it can offer. He learns about the history of this spice and why it was once so revered, and the ways in which you can use it today to make your food not just tastier, but also healthier.

If you’d like to contact the programme you can email thefoodchain@bbc.co.uk.

Produced and presented by John Laurenson.

Image: a cartoon wooden pepper mill with specks of ground pepper coming out of it, floats on a blue background. (Credit: Getty/yurumarukko)

How confident would you feel about complaining if a restaurant meal was not up to scratch?

Restaurateurs in the UK, South Africa and the United States compare stories of the most outrageous complaints they’ve received, and how they were dealt with.

They tell Ruth Alexander how increasing numbers of customers are "weaponising" the threat of negative online reviews.

And if you’re someone who struggles to complain when things go wrong, there’s advice on how to make your voice heard calmly and assertively.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Produced by Lexy O'Connor

Image: A young woman is arguing with a waiter in a cafe. She has a pastry on her plate and is holding a cup of coffee. Credit: Getty/Wavebreak Media

How much food is the “right” amount - and why is it so hard to work that out?

Ruth Alexander explores the world of portion sizes, starting with the rise of “portion distortion” in the United States, where supersized sodas and giant restaurant plates became the norm. Nutritionist Lisa Young explains how this shift happened, and what it’s meant for public health.

In São Paulo, dietitian Marle Alvarenga shares new research comparing Brazil, France, and the US, revealing how culture and globalisation shape what feels like a normal portion. Why are French plates so much smaller - and meals so much slower - than in Brazil or America?

And psychologist Lenny Vartanian in Sydney explains the powerful pull of portion size on our behaviour: why bigger servings make us eat more, even when we know better, and why education alone isn’t enough to change our habits.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Producer: Izzy Greenfield

Photo: Three spoons showing different portion sizes (credit: getty)

Listeners to BBC World Service told us they hate it when fellow diners chew noisily or talk with their mouth full. But what is polite at mealtimes can vary wildly according to where in the world you are and who you are with.

Ruth Alexander visits London's City of Westminster College to meet some of its teenage students, to find out about their different backgrounds and what good manners mean to them. She visits an exclusive private members club in the heart of London's West end to talk to Rupert Wesson, a director and coach at the British etiquette institution Debrett’s. And she hears from Japanese language tutor Chika Nakagawa about the rules that govern mealtimes in Japan.

Plus what if you are thrown into a world you weren't prepared for? After tough beginnings and through sheer determination Reggie Nelson built a career in finance. He tells Ruth about his extraordinary path to success and how he got through his first formal business dinner.

And what about when a restaurant meal brings out the worst in a customer? Mo Abedin, owner of Sticky Rice Thai restaurants in Dubai and Abu Dhabi talks about how he and his staff deal with the nightmare diners who have forgotten their manners.

Producer: Lexy O'Connor

(Image: A bearded man in a shirt and tie is eating a meal in front of a red background. He is shovelling a big fork full of noodles into his mouth whilst staring at his mobile phone. Credit: Getty Images/Group4 Studio)

Have you tried Dubai chocolate, hot honey or the fruit sando? They’re just a few examples of viral food trends which got everyone talking on social media.

Rumella Dasgupta talks to creators and product developer to find out how much work goes into creating the next big thing in food. She hears how there’s often years of work behind the product that seems to suddenly be the latest craze.

It might look as though some food trends go viral overnight, but entrepreneur Mike Kurtz explains how creating his brand Mike’s Hot Honey took years of hard work. Product developers Katie McDaid and Robert Craggs tell Rumella how their jobs involve travelling the world to find the next big thing in food. Plus chef and food writer Pierre Thiam, explains how he’s been working tirelessly for decades to bring the ancient West African grain Fonio to worldwide attention.

We’d love to hear about the viral foods you’ve tried and what you thought of them. You can email the team at thefoodchain@bbc.co.uk

Producer: Lexy O’Connor

Self-confessed crisp lover Ruth Alexander traces the story of the crisp or potato chip, starting with a tasting experience matching fine wines and “rubbish crisps” at a wine bar in the northern English city of Manchester.

With the help of journalist and crisp historian Natalie Whittle, Ruth finds out about the commercial beginnings of the potato chip in the fine dining rooms of nineteenth century New York. She meets the chef who travels the world searching for new taste sensations to develop into a packet of crisps for snack giant Frito-Lays. Can you guess which flavours nearly, but not quite, made it onto the shelves?

Ruth also talks to salty snack expert Jolene Ng of Mintel, who researches the role crisps play in modern life. And with Japan renowned for its unusual flavours, Ruth meets Makoto Ehara, the boss of one of the country’s biggest potato chip makers Calbee, who tells her about the threat climate change poses to the future of the potato chip industry.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Produced by Lexy O’Connor

Photo: A woman in a bright pink jumper is smiling as she pushes a supermarket trolley through the potato crisp aisle. Credit: dowell / getty images

High prices, busy lives and the rise of intermittent fasting mean more people are skipping breakfast. This week, Ruth Alexander speaks to three experts in nutrition about whether that matters. She finds out what it’s best to eat for your first meal of the day and when is best to have it. Experts Courtney Peterson, a researcher in intermittent fasting and associate professor at the Harvard TH Chan School of Public Health in the United States.. Professor Alexandra Johnstone, a nutrition scientist based at The Rowett Institute at the University of Aberdeen in Scotland snd Marianella Herrera, an associate professor in public health nutrition at Central University of Venezuela and visiting lecturer at Framingham State University in the US, share their insights. If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Producer: Izzy Greenfield Image: A bowl full of cereal and a spoon (credit: Getty)

Bottom trawling is one of the most widely used - and most destructive - fishing practices in the world. Dragging heavy nets across the seabed damages fragile ecosystems, depletes global fish supplies, and puts the livelihoods of small-scale fishers at risk.

In this episode of The Food Chain, Rumella Dasgupta speaks to John Worthington, one of the last remaining fishermen in Fleetwood, UK, who fears a proposed ban on bottom trawling in Marine Protected Areas could end his business. Fisheries economist Dr Rashid Sumaila of the University of British Columbia explains the global consequences of trawling, from overfishing to illegal and unregulated catches.

On the coast of West Africa, Aissata Daouda Dia, Head of Advocacy at Blue Ventures, tells us hom much coastal communities rely on local catch. Nana Kweigyah from the Canoe and Fishing Gear Owners Association of Ghana, describes how foreign industrial trawlers are devastating coastal communities. And in Malaysia, Adrian Poon of the Cinnamon Group explores the challenges of sourcing fish sustainably in a market dominated by cheaper, trawled seafood.

Producer: Izzy Greenfield Image: Getty

The quality of food in care homes for the elderly can be underwhelming. Ruth Alexander talks to the people highlighting the issue and finding ways to bring nutrition and comfort back on the menu.

Dr Lisa Portner, a medical doctor and researcher at the Berlin Institute of Health at Charite, outlines the inadequate diet offered by three nursing homes she studied in Germany.

Australian restaurateur and food writer Maggie Beer tells how she came to set up the Maggie Beer Foundation, which aims to research the issues, raise awareness and offer culinary training.

Ronald Marshall explains the simple ways he found to help carers understand the food preferences of his mum, who was diagnosed with dementia in 2020.

And Navjot Gill-Chawla recounts the conversations she had with South-Asian Canadians living with dementia and their families, as a PhD Candidate in Public Health at the University of Waterloo in Ontario. When the subject of care homes came up, she says food was uppermost in their minds.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

And if you'd like to try Maggie's brownie recipe featured in the show, you can find it in full on our website.

Producer: Beatrice Pickup

(Photo: Two cooks in a care home kitchen are smiling as they prepare a tray of brigh orange roast pumpkin. Credit: Sam Kroepsch)

From ancient Egyptian pyramid builders to French chefs, garlic has been prized, feared, and even used to ward off evil. In this episode, Rumella Dasgupta explores garlic’s journey through history and across cultures - from its medicinal roots and rich folklore to its starring role in kitchens worldwide. Featuring chefs, historians, and dietitians, we uncover how this pungent bulb became a global favourite - and ask the ultimate question: is garlic really good for us?

Producer: Izzy Greenfield Image: A bulb of garlic split in half to reveal cloves Credit: Getty

The World Health Organisation says close to 60 million people are living with dementia; and there are 10 million new cases every year. But could what we eat help to prevent it?

Three guests who've been exploring the potential for diet to help prevent dementia tell Ruth Alexander about their findings. We hear from Professor Christy Tangney of Rush University System for Health in the United States – she co-created the MIND diet; Anne-Marie Minihane, Professor of Nutrition and Genetics or Nutrigenetics as it’s known, at Norwich Medical School at the University of East Anglia in the UK; and Dr Lizette Kuhn, a dietitian in Pretoria, South Africa.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Produced by Izzy Greenfield and Alistair Kleebauer

(Image: two sides of a brain; one made up of fruits and vegetables, and the other a sketch. Credit: Getty Images)

Dementia is a syndrome associated with a decline of brain function that can affect memory, thought processes and behaviour. In some cases this can impact people’s ability to shop, cook and eat a meal. The most common form of dementia is Alzheimer’s Disease.

In this programme Ruth Alexander meets people living with dementia and their families, to hear about the ways in which a diagnosis can impact mealtimes.

Ruth meets Alan and Amy Lambert in Manchester, England. Alan was diagnosed with Alzheimer’s Disease in 2024 and his daughter Amy lives with him. They share some of the techniques they’ve developed at home to support Alan.

For Ruby Qureshi in Canada, cooking was a huge part of her life before being diagnosed with Alzheimer’s in 2020. Ruth hears how her husband Pasha Qureshi has joined her in the kitchen in a supporting role.

Jo Bonser in Nottingham, UK shares her experiences of supporting her mother who lived with vascular dementia and in 2016 stopped eating and drinking. Jo has gone on to set up a company, Dignified Dining that offers training in this area.

And Aideen McGuinness is a registered dietitian working in the Memory Assessment and Support Service in Country Wexford Ireland, and co-author of a guide on dementia and nutrition.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Produced by Beatrice Pickup.

(Image: Alan and Amy Lambert sat at the kitchen table with a bowl of soup and plate of toast. Credit: BBC)

Something as simple as sharing a meal or utensils can carry social stigma for the millions born into the bottom of India’s caste system, a social structure that divides people into different groups.

In this programme Devina Gupta explores the foods of the Dalit community, historically considered at the very bottom of the caste system. She hears how many dishes evolved from necessity, due to low incomes and lack of available food and speaks to people looking to record and share these dishes with future generations.

Devina meets people who identify as Dalit to talk about the discrimination they have experienced in their communities and workplaces as a result of their family’s social status, and how it can be particularly hard to find work in the food industry.

If you’d like to contact the programme you can email thefoodchain@bbc.co.uk.

Producer Beatrice Pickup.

(Image: some foraged green leaves being washed in a bowl of water. Credit: BBC)

What’s at stake when a child has their first meal in a new home?

For children entering care, especially those who have faced food insecurity, that first plate of food can be a big moment.

In this programme, Ruth Alexander explores how food and mealtimes can help children feel safe and give them a sense of belonging.

She meets Jessica-Rae Williamson, a 21 year old care leaver from Manchester, England, who still remembers the first meal she ate with her foster family, aged 13.

In Wrexham, Wales, Ruth meets long-term foster carers John and Viv, Cath and Neil and Rosemary, who have opened their homes to dozens of children through Foster Wales. They discuss their strategies for dealing with picky eating and hoarding.

Dr Katja Rowell, feeding expert and author of the book “Love Me, Feed Me: The Foster and Adoptive Parent’s Guide to Responsive Feeding”, gives her counter-intuitive tips for avoiding mealtimes becoming a battleground.

And Melissa Guida-Richards, author of the book “What White Parents Should Know About Transracial Adoption”, shares her experience of being adopted from Colombia by Italian and Portuguese parents living in the US and her subsequent search for her Colombian heritage through food.

This programme contains discussion of food poverty and insecurity, and disordered eating. If you’ve been affected by any of the issues raised and need support, speak to a health professional.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Produced by Beatrice Pickup.

(Image: a partly eaten plate of spaghetti bolognese sat on a child's knee.Credit: Getty Images/BBC)

Protein is a health and fitness buzzword – plastered on packaging, prioritised in diets and praised by fitness influencers. But is our preoccupation with protein overshadowing another nutritional essential – fibre? Ruth Alexander explores the science, and marketing, behind protein’s popularity with expert guests Dr Emma Beckett, a food and nutrition scientist and communicator in Australia, and author of You Are More Than What You Eat; physician and social media creator Dr Karan Rajan, who is the author of This Book May Save Your Life; Scott Dicker from SPINS market research company in Chicago; Paul Kita, deputy editor of Men’s Health Magazine in the US.

Producer: Izzy Greenfield

It can be the difference between life and death for your character, signal you’re on a hostile planet or in a sumptuous world, or can even give you the whole basis for a game.

In this week’s Food Chain we hear where the ideas for some of the most disgusting and delicious foods in games come from, and how to recreate them in real life.

Video game creator Tim Cain tells us why food was such an important tool in his games Fallout and The Outer Worlds. Author and gamer Cassandra Reeder tells us why she started making entire recipe books based on food from video games, and how important is food in gaming? Video game enthusiast Harriet tells us why it's an essential tool for escapism.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk Presenter: Ruth Alexander Producers: Izzy Greenfield and Hannah Bewley

What can we tell about a society from the plates, bowls and cups it uses?

In this programme Ruth Alexander learns about the history of pottery, from early earthenware to the porcelain discovered by ancient China, known as ‘white gold’.

Professor of archaeology, Joanita Vroom from Leiden University in the Netherlands explains why every pot has a story to tell.

Historian Professor Suzanne Marchand from Louisiana State University in the United States picks up the story of porcelain in the 18th century. Such was its value that it prompted numerous failed attempts, theft and even imprisonment of those who knew the secret recipe.

Ruth visits the Wedgwood factory and museum collection in North Staffordshire in the English Midlands. V&A curator Kate Turner explains how the company’s founder, Josiah Wedgwood, changed dinnerware tastes once again – catering to an emerging consumer class looking for affordable ways to decorate their home. Ruth tours the factory and meets Emma Glynn, Creative Director of Wedgwood to discuss the challenges in today’s market.

Produced by Beatrice Pickup

(Image: a potter throwing a plate on a potter's wheel. Credit: Getty Images/BBC)

Love Thai food? It might be thanks to a two-decade long policy on the part of the government of Thailand to promote its food culture abroad, with the express aim of increasing trade and tourism.

Ruth Alexander explores how food can be used as a foreign policy tool, influencing not just world leaders but seeking to win the hearts and minds of the public.

Academic Sam Chapple-Sokol at George Washington University in the US explains why gastro-diplomacy is such an effective tool for soft power.

Jan Wisansing, tourism policy consultant in Bangkok, explains the impact of the Global Thai scheme on international tourism to the country.

Ruth speaks to the owners of LumLum Thai restaurant in Copenhagen, Denmark, who have recently received a Thai SELECT award, an official endorsement from the government of Thailand.

And writer and historian Ali Domrongchai in the US talks about the impact of this approach on her own family’s Thai restaurant in Florida.

Producer: Beatrice Pickup. Reporter: Gideon Long in Bangkok

(Image: A plate of pad thai, said to be Thailand’s national dish, with Thailand’s flag in the background. Credit: Getty Images/BBC)

How is artificial intelligence reshaping the global food industry? Rumella Dasgupta explores how AI is helping chefs experiment with new recipes, reducing food waste in factories and streamlining supply chains.

She speaks to Tamsin Deasey Weinsten, a though leader on the AI industry, to discover the parts of the food supply chain that AI is affecting the most.

In the kitchen, chef Matan Zakan tells us how he uses AI chatbots to assist him with recipes and food orders.

AI is also revealing problems that have long been overlooked. We speak to Dini McGrath, co founder of ZEST, a company that has developed an AI programme to address food waste.

And the CEO of Chef Robotics, Rajat Bhageria, welcomes us to meet his AI enabled robots, designed to help labour shortage problems in the food industry.

Our shops are full of products sourced from all over the world, and its someone’s job to find and secure them – at the right quality and quantity for the best price possible. In this programme Ruth Alexander speaks to three food buyers on three different continents. She is joined by Beatrice Muraguri, a Tea Buyer and exporter based in Mombasa, Kenya; Chloe Doutre-Roussel, who travels the world sourcing cacao beans for speciality chocolate makers. And Jim Gulkin, the chief executive of a trading company, which deals mainly in frozen seafood based in Bangkok, Thailand.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Produced by Rumella Dasgupta and Beatrice Pickup.

(Image: a cup of tea with teabag in it, a peeled prawn and some squares of milk chocolate. Credit: Getty Images/ BBC)

What it’s like for your child to be diagnosed with life-threatening food allergies? Ruth Alexander explores the realities of shopping, socialising and eating out with a food allergy, and discusses what needs to change to make food safer for everyone.

Amanda Bee and her daughter Vivian, 13, tell us how they navigate her allergies to milk, beef and dragonfruit.

We hear from Dr Alexandra Santos, a professor of paediatric allergy at King's College London, about why food allergies are rising across the world.

In which parts of the world is it most difficult to have a food allergy? Deshna in Coimbatore, India, tells us what it’s like to have a lactose allergy in a country that uses so much milk and cheese.

Chief of the food allergy committee at the World Allergy Organisation, Alessandro Fiocchi, and head of allergy at the paediatric hospital Bambino Gesu in Rome, explains the problems around ‘may contain’ labelling and how confusing they can be to consumers. And how despite the challenges, medicine is providing more and more solutions to those living with food allergies.

Does food have the power to send messages when words aren’t enough? This week Ruth Alexander finds out how food can sometimes speak much louder than words.

Lecturer in Chinese Cultural Studies Dr Zhaokun Xi explains why gifting a pear in China can quietly suggest separation — and how it still carries weight today. Chef Beejhy Barhany reflects on the role of Ethiopian food in expressing care and welcome through gursha, the act of feeding people with your hands. We find out how food can be used as a signal of protest from historian and food researcher Aylin Oney Tan. From the Janissaries tipping their cauldrons of soup to signal unrest, to black pepper in a wedding dish to symbolise the role of the mother in law. And we learn about the power of food in mourning; Greek food writer Aglaia Kremezi tell us about koliva, a sweet dish served at funerals in Greece — and how it attempts to soften the bitterness of loss.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Presenter: Ruth Alexander Producer: Izzy Greenfield

Ruth Alexander looks at the world of snacks. Have we always snacked or is it a more modern phenomenon that started with formal meal patterns? What snacks have been popular through the ages, what’s the industry doing now and what could we be eating in the future?

We talk to food historians Dr Annie Gray and Professor Janis Thiessen, the former CEO of Unilever Paul Polman - who remembers the rise of some of the biggest brands - and Christine Cochran from the international trade association SNAC International.

We also hear from snack fans across the world.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

When you’re feeling stressed, does it affect your appetite?

In this programme Ruth Alexander is joined by two experts in chronic stress to discuss why it can cause us to crave certain foods, the impact on our bodies and whether there’s anything we can do to prepare for periods of stress in our lives.

Ruth is joined by Professor Rajita Sinha, clinical psychologist and founding director of the Yale University Interdisciplinary Stress Center in the United States, and Dr Mithu Storoni, neuro-ophthalmologist and author of the books ‘Stress-Proof’ and ‘Hyperefficient’.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Presented by Ruth Alexander.

Produced by Beatrice Pickup and Bisi Adebayo.

(Image: a woman studying and eating a slice of pizza whilst wearing headphones. Credit: Getty Images/ BBC)

There are bakeries, cafes, bars and restaurants around the world which don’t just exist to serve up food and drink – they're on a mission to rebuild lives.

Ruth Alexander hears the stories of risk, reward and redemption from three businesses on three different continents:

At The Dusty Knuckle bakery in London, the trainee programme manager Charlie Atkinson explains why she thinks a cafe and bakery is the perfect place to foster team spirit.

Reporter Gideon Long visits La Trocha in Bogota, Colombia, a bar and cultural centre run by a group of former Farc rebels.

Rob Perez and Mindy Street of DV8 Kitchen in Lexington, Kentucky, US, talk about how they’ve won over customers.

Producers: Hannah Bewley and Sam Clack

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

(Image: hands kneading dough. Credit: Getty Images/ BBC)

Cottage industries, usually referring to small scale home-based production, can be found all over the world. Often they provide a vital source of additional income for women, particularly in low income and rural areas.

In this programme Devina Gupta speaks to women who are working in food cottage industries in India, Eswatini in Southern Africa, and Ecuador, to hear about the work and the difference it makes to their finances.

Devina goes to meet some of the 40,000 women working for Shri Mahila Griha Udyog Lijjat Papad, India’s multimillion-dollar co-operative, which produces 'Lijjat Papad' poppadoms, sold nationwide.

If you’d like to contact the programme you can email thefoodchain@bbc.co.uk

Presented by Devina Gupta.

Produced by Hannah Bewley.

(Image: two women rolling poppadom disks in Delhi. Credit: BBC)

Indigenous food is experiencing a revival in Canada, with growing awareness of First Nations culture, and Indigenous run community farms and restaurants opening.

While many are hopeful, there remains challenges to food security, including the realities of living in remote areas, the legacy of historic government schemes and climate change.

Megan Lawton speaks to First Nation farmers, restauranteurs and chefs.

Presented by Megan Lawton

Produced by Sam Gruet

As plastic waste continues to pile up, Ruth Alexander explores how manufacturers, retailers, and designers are rethinking the way our food is packaged.

We hear how shoppers are responding to eco-conscious packaging in Finland, from supermarket manager Markku Hautala. And is plastic really the enemy? Paul Jenkins, founder of a leading packaging consultancy, shares the latest innovations in sustainable design, and why some materials aren’t always what they seem.

Rhea Singhal, CEO of India’s first fully compostable packaging company, discusses the realities of creating truly sustainable alternatives—and whether they’re enough. And the head of a German frozen food company, Felix Ahlers, explains why his company ditched all additives – packaging included – for the sake of the environment.

Corner shop, mom and pop store or konbini, whatever you call them, most of us have a local business that sells convenience.

Rising food costs mean many are struggling to make a profit, one solution is to improve the fresh food and beverage offering which can have better margins.

Ruth Alexander visits a convenience store in Morley in West Yorkshire in the UK, where owner Ajay Singh has introduced cocktails and street food alongside the traditional offering of bread and milk. Retail analyst Rob Wilson from L.E.K. Consulting explains why the US is looking to Japan for inspiration. Reporter Phoebe Amoroso reports from Tokyo, visiting some of the biggest chain convenience stores in the country and finding out what has made them so successful.

And author Ann Y.K. Choi tells Ruth what it takes to run a convenience store, reflecting on her family’s experiences running such businesses in Toronto after moving there from Korea in 1975.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

(Image: from left to right, Jazz Singh, Ajay Singh and Suki Singh who run Premier Morley convenience store in the UK. Credit: BBC)

What’s the purpose of restaurant reviews?

The Food Chain looks at who is qualified to write a review, how helpful they are today and the impact they can have on a business.

In this programme Ruth Alexander speaks to Giles Coren, restaurant critic for The Times newspaper in the UK, Opeyemi Famakin, online reviewer and influencer in Nigeria, and Ana Roš, chef and owner of the Hiša Franko restaurant in Slovenia which holds three Michelin stars.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Presenter by Ruth Alexander.

Produced by Beatrice Pickup and Bisi Adebayo.

(Image: from left to right, Giles Coren, Opeyemi Famakin and Ana Roš. Credits: BBC, Opeyemi Famakin and Suzan Gabrijan)

Saffron - the world's most expensive spice - is treasured for its rich aroma, vibrant colour, and unique flavour. But why does it command such a high price?

In this episode of The Food Chain, Ruth Alexander uncovers the story of saffron from crocus flower to kitchen, finds out about the labour-intensive harvesting process, and learns about the innovations in lab-grown saffron that could change the industry forever.

Iranian chef and author Najmieh Batmanglij shares saffron's culinary and cultural significance. Saffron trader Mehrdad Rowhani offers insight into the complex global market and the problem of fraud, and agricultural scientist Dr Ardalan Ghilavizadeh tells us about why more countries are investing in lab-grown saffron, taking the harvest from traditional fields and into indoor units.

To get in touch with the show, please email: thefoodchain@bbc.co.uk

Producer: Izzy Greenfield Reporting: Irshad Hussain

Why do brands have such power over us? Ruth Alexander talks to the designers influencing your decisions about what and where you eat. Renowned graphic designer Paula Scher shares her insights on what it takes to create a visual identity that stands the test of time, including her work on the US fast-food restaurant Shake Shack. And Arjen Klinkenberg, the creative mind behind Dutch company Tony’s Chocolonely, tells us how he designed its distinctive chocolate bar wrapper in just 10 minutes. Together they discuss what makes a design classic a classic and reveal the secret to building a brand that endures (hint: don’t tweak). To get in touch with the show, please email: thefoodchain@bbc.co.uk Producers: Izzy Greenfield and Sam Clack.

What makes a noodle? Is it the shape? The ingredients?

In this programme Devina Gupta explores the history of noodles, tracing their origin back to Third-Century China. She finds out how they came to be eaten in so many different ways in so many different places.

Devina enjoys a Tibetan-influenced noodle dish in Delhi’s Monastery Market, a long-time home of Tibetan restaurants and businesses in India. She hears how noodles were one of many foods to travel the silk trading routes in the region.

Jen Lin-Liu, author of ‘On the Noodle Road: From Beijing to Rome with Love and Pasta’, tells Devina about the earliest mention of noodles in historical documents. Frank Striegl in Tokyo, who runs the blog ‘5AM Ramen’ picks up the story, explaining how noodles travelled from China to Japan and became ramen – one of Japan’s iconic dishes today.

In 1958 dried instant noodles were invented in Japan. Devina speaks to Varun Oberoi of Nissin India, to hear about the opportunities and challenges facing the instant noodle company today.

Presented by Devina Gupta.

Produced by Beatrice Pickup.

(Image: noodles dangling from chopsticks above a bowl. Credit: Getty Images/ BBC)

John Laurenson explores the enduring appeal of stock. A century and a half ago, a butcher at the big Parisian food market Les Halles started selling beef broth – ‘bouillon’ in French - to the people who worked there. In a few years this had developed into what was perhaps the world’s first restaurant chain. By the end of the Nineteenth Century there were hundreds of ‘bouillons’ in Paris.

Today, with inflation making traditional French restaurants too expensive for many people, these big, affordable eateries are making a comeback.

The French aren’t, of course, the only people to discover the delights of this simple, warming, nourishing food. John learns how bouillon influenced Vietnam’s iconic dish, pho, as a result of the French colonial presence in the region in the 1800 and 1900s.

Producer/presenter: John Laurenson

(Image: A dish of stock with chicken and herbs with a ladle sticking out of it. Credit: Getty Images/BBC)

What motivates someone to dedicate years of their life to learning one skill?

Ruth Alexander finds out what it takes to master a craft, the exacting standards one must meet, and why it's all worth it.

Sushi chef Eddie Chow tells us how it took more than ten years to achieve the title of 'master sushi chef', and the pain of getting there.

What does it take to become an illustrious master butcher in Germany? Claus Bobel explains the importance of tradition, and his daughter Yulia tells us why she's following in his footsteps.

And 'Lady of the Ham' Cati Gomez describes the process of becoming a cartadora, and why ham carving is getting more and more popular around the world.

We find out the secret recipe that goes into some of the TV food shows watched by millions around the world.

From hiring snake wranglers in South Africa to fending off flies in Sweden, three top producers lift the lid on what it takes to serve up a feast of culinary entertainment.

Seasoned professionals Avril Beaven (Great British Menu), Irene Wong (Man Fire Food) and Jane Kennedy (Masterchef South Africa and My Kitchen Rules South Africa) explain the people skills needed to manage big personalities. And open up about the gruelling schedule that goes into creating televised cooking shows.

If you would like to get in touch with the programme, email thefoodchain@bbc.co.uk.

Presenter: Ruth Alexander

Producers: Sam Clack and Hannah Bewley

(Image: Jane Kennedy, Irene Wong and Avril Beaven)

People have been eating out in restaurants and bars for hundreds of years, and some of those early establishments are still open today.

This week Ruth Alexander meets the people running some of the world’s oldest restaurants. When so many close within the first 12 months of opening, what’s the secret to centuries-old success?

Antonio Gonzales Gomez runs Botin, in the Spanish capital Madrid. The restaurant is judged as the oldest by the Guinness World Records, and he tells us how he and his family have kept it going for so long.

Ruth heads to the east of England to Nottingham, where the battle to claim the title of 'world's oldest pub' is fierce. Buildings archaeologist Dr James Wright explains what evidence he's found to declare the winner.

We hear how a 200-year-old tavern in Missouri, in the United States, has been battling to stay open, and the man who runs the "oldest sausage restaurant in the world" tells us why being located of an historic German town boosts business.

Why do we enjoy foods that crunch?

Listener Sheila Harris contacted The Food Chain with that question and asked us to find out if the food texture has any benefits.

Ruth Alexander speaks to Danielle Reed, Chief Science Officer at the Monell Chemical Senses Center in Philadelphia, US, who says that crunchy foods signal freshness and help our brains decide if a food is safe to eat.

Paediatric dentist Ashley Lerman in New York, US says crunchy fruit and vegetables can act as a natural tooth cleaner.

Anthropologist Professor Noreen von Cramon-Taubadel at the University at Buffalo in New York, US says that the texture of our diets can impact the shape of our faces. Her work has studied how jaw shape has changed as humans switched from hunter gatherer to farming diets.

Ciarán Forde, Professor of Sensory Science and Eating Behaviour at Wageningen University in the Netherlands explains how crunchy and other hard textures could help us to eat more slowly and consume fewer calories.

And could crunch make foods more palatable? Chef Dulsie Fadzai Mudekwa in Zimbabwe says the texture is key to convincing people to try edible insects.

If you have a question for The Food Chain email thefoodchain@bbc.co.uk

Produced by Beatrice Pickup.

(Image: a woman biting a stick of celery. Credit: Getty Images/BBC)

Around 100 countries have official dietary guidelines, and more are on their way. But who is following them?

Ruth Alexander asks how realistic healthy-eating advice is as she explores how official recommendations are developed, what they’re trying to achieve, and the obstacles standing in our way.

We hear from Fatima Hachem, Senior Nutrition Officer at the United Nation’s Food and Agriculture Organisation, about how her team offers support to countries designing dietary guidelines.

Chiza Kunwenda, senior lecturer in the Department of Food Science and Nutrition at the University of Zambia, tells us how he and a team of others drew up the latest dietary guidelines for Zambia and other countries in Africa.

In Argentina, as well as advice, the government has issued black octagonal warning labels on foods high in salt sugar, saturated fats and calories. Are people taking notice?

And can people around the world afford to eat according to guidelines? Dr Anna Herforth co-directed the Food prices for Nutrition project at Tufts University in the United States, tells us what she found. We also hear from shoppers at a community food outlet in the North West of England, about how cost is barrier to healthy eating.

(Image: a plate of food showing suggested dietary guidelines. Credit: Getty Images/BBC)

If you’d like to contact the programme, email thefoodchain@bbc.co.uk.

Producers: Hannah Bewley and Izzy Greenfield.

Rice is the main staple for over half the world’s population.

The crop has problems though – it is vulnerable to climate change, whether that’s drought or flooding. It’s also a crop that contributes to climate change, as it uses more water than other grain crops and is frequently grown in flooded conditions. Rice production is also a big source of methane emissions.

In this programme Ruth Alexander hears about the possible solutions to these problems. Dr Yvonne Pinto, Director General of the International Rice Research Institute in the Philippines talks about their work developing new varieties of rice, and new more sustainable farming techniques.

One rice company trialling these techniques is Tilda in the UK. General Manager Jean-Philippe Laborde explains what difference it’s made to water and fertiliser use as well as methane emissions.

Given the problems with rice, should we just eat less of it?

Jakob Klein, anthropologist at SOAS University of London explains the Chinese government’s attempts to convince people to eat more potato as a staple food.

And we talk about the cultural importance of rice with listeners in the Philippines and Bangladesh.

If you’d like to contact the programme email thefoodchain@bbc.co.uk

Presented by Ruth Alexander.

Produced by Beatrice Pickup.

(Image: a steaming bowl of rice with chopsticks above it holding a mouthful of white rice grains. Credit: Getty Images/BBC)

When there are so many recipes available for free online, why does anyone still buy cookbooks?

In this programme we look into the business of selling cookbooks, what future the format may have and hear about the treasured tomes you turn to time and time again.

Ruth Alexander visits Books for Cooks, a specialist cookbook shop in London, to chat to Eric Treuille who cooks lunch for his customers from a different cookbook each day.

She speaks to cookbook writers Mogau Seshoene in South Africa, author of ‘The Lazy Makoti’ books, and Joanne Molinaro in the US, author of ‘The Korean Vegan’.

Doris Cooper tells Ruth what a publisher is looking for in a cookbook. She tells Ruth about her big hits and misses as editor-in-chief of Simon Element, a division of Simon and Schuster in New York.

And listeners in Italy, Malta and the US tell us about their favourite cookbooks.

If you would like to contact the programme email thefoodchain@bbc.co.uk.

Presented by Ruth Alexander.

Produced by Beatrice Pickup.

(Image: Ruth Alexander with her grandmother’s cookbook, which still holds her handwritten pastry recipe. Credit: BBC)

Prosecco flavoured crisps? Eggnog chicken? Sticky toffee pudding trifle?

The innovation for novelty Christmas products seems endless, but is there the appetite?

Ruth Alexander lifts the lid on an industry churning out festive food hits, and flops, in the race for Christmas tastebuds.

She visits the Good Housekeeping Institute in London to take part in an opulent dessert testing event, deciding which puddings are the best on the shelves this year.

Eric Nummelin and Mike Vahabi from Hela Spice in Toronto, Canada, reveal the wacky inventions they have come up with for this year, and how inspiration can strike at any time.

A former buyer for a large European supermarket chain talks about how to “win” Christmas with headline-grabbing products, and what happens when shoppers try things once and don’t go back for more.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Presenter: Ruth Alexander

Producer: Hannah Bewley

(Image: Colourful Christmas treats and biscuits. Credit: Getty Images/BBC)

Which food do you associate with your favourite sport?

Pie and chips at an English football match, biriyanis at the cricket in Pakistan or grilling meat in the parking lot outside an American football game – there are some tasty traditions which go hand-in-hand with sport across the world.

Ruth Alexander hears how a traditional rice dish can bring two rival nations together over a game of cricket, and how a disappointing sausage roll before a football game led one man on a country-wide quest for better food for fans.

Over a pile of warming chips on a frosty night in South Manchester, Ruth discovers how getting the food right off the pitch might help a team’s fortune improve on the pitch.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Presenter: Ruth Alexander

Producer: Hannah Bewley

Additional reporting: Ben Derico

(Image: a box of chips with gravy and curry sauce held beside a football pitch. Credit: BBC)

Crookie, anyone? Cronut, croffle?

Ruth Alexander looks at the rise of the dessert café and the extraordinary creations it’s spawned.

She visits one such café in Manchester with roses adorning the walls, and chocolate adorning almost everything else.

And speaks to a food blogger in Dubai and a café owner in USA about the latest trends and the businesses who have been serving puddings for decades.

Find out what the latest fashions are in dessert, and how quickly a new invention can sweep the world.

Going out for pudding has become the thing to do in many places and the more extravagant your order, the better.

In fact, going out for pudding has never been so fashionable – or has it?

Presenter: Ruth Alexander

Producers: Rumella Dasgupta and Hannah Bewley

(Image: A selection of sweet desserts. Credit: BBC)

From America to Mongolia, you can go into a restaurant run by a global fast-food chain, and buy the same meal. So how did fast food become so successful?

Across the world, last year we spent more than 900 billion dollars on fast food. The USA, where it all began, consumes the most, but even in France, despite its history of haute cuisine, more than half of households regularly enjoy burgers and fries.

Julia Paul learns about its origins in the USA, and hears how it spread globally, thanks to the franchise model. She speaks to a superfan who’s eaten at one chain in 25 countries.

Critics say global brands shipping food around the world is bad for the environment and for local economies. There are some places where some brands have failed, and some where they haven’t even opened yet. Julia hears how local burgers, and the worldwide recession, saw off McDonalds in Iceland, and speaks to a Nigerian female chef who’s competing to offer fast local food in Lagos.

If you would like to get in touch with the programme, email thefoodchain@bbc.co.uk.

Presented and produced by Julia Paul.

(Image: A large burger. Credit: Getty Images/BBC)

We are celebrating 10 years of The Food Chain with some of our favourite programme moments from the past decade.

Fishing to stay alive, chopping onions in remembrance, and tasting people’s names – these stories and more tell us something about our relationship with food and how it helps us connect with one another.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Presenter: Ruth Alexander

(Image: A chocolate birthday cake with number 10 candles on top. Credit: Getty Images)

Dull? Boring? Plain?

Vanilla is a byword for something which is ordinary or standard.

In this programme Ruth Alexander finds the story of the popular spice is anything but normal.

Originating in Mexico it’s travelled the globe and taken over, and is now one of the most valuable commodities available.

It’s gone from being highly sought after and the height of luxury – even serving as an aphrodisiac for Mesoamericans and a European monarch - to ubiquitous and considered “regular”.

Despite its reputation there is still a lot to appreciate about this complex flavour, and fans in one ice cream parlour are keen to make sure it isn’t overlooked.

Presenter: Ruth Alexander

Producers: Nina Pullman and Hannah Bewley

(Image: A vanilla bean and flower. Credit: Getty Images)

How do our work habits shape what we eat?

In this programme Izzy Greenfield discovers the history of the workplace lunch and the ways in which society has reshaped it.

Historian Megan Elias of Boston University in the US explains how lunches have evolved from the factories of the 19th century Industrial Revolution to sandwiches eaten at the desk in 20th century offices.

Izzy visits an office and co-working space in Manchester, run by Department, a company that operates office spaces in the North of England. Abigail Gunning, Operations Director, explains why it makes sense for the company to open the building’s cafe and restaurant to the public as well as staff.

And how does workplace food impact our health? Olivia Beck, registered nutritionist at Food Choices at Work in Cork, Ireland, explains why it’s in employers’ interests to create a healthy food environment for all staff, whether in the office or at home.

If you’d like to contact the programme you can email thefoodchain@bbc.co.uk

Presented by Izzy Greenfield.

Produced by Beatrice Pickup.

Additional reporting by James Jackson.

(Image: a man eating a burger with a glass of juice at his desk in front of a computer screen. Credit: Getty Images/BBC)

Water scarcity is an increasing problem on every continent, according to the United Nations.

Around half the world’s population experiences severe water scarcity for at least part of the year, according to a report by the Intergovernmental Panel on Climate Change.

Global warming and population growth is expected to make the situation worse, so what is it like to run a home or a business amid water shortages?

Ruth Alexander hears from households and businesses in Karachi, Pakistan and Bogata, Colombia, and finds out lessons from Cape Town, South Africa which was said to be approaching ‘Day Zero’ when the taps would run dry in 2018. Ruth explores whether desalination – harvesting drinking water from the sea - could ever offer a sustainable solution.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Produced by Rumella Dasgupta and Beatrice Pickup.

(Image: people queuing for water in Cape Town, South Africa in 2018. Credit: Bloomberg/Getty Images/BBC)

Did you share a flat, house or kitchen as a student or professional? Is it the shared meals and conversation that stay with you, or the piles of dirty dishes and missing food?

This week Ruth Alexander has a look around shared kitchens all over the world.

We hear the good, bad and dirty – and give advice on how to build cooperation in your shared kitchen. Ruth hears from a former housemate what she was really like to share with, as well as a surprise revelation about her unappetising meal of choice.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Presented by Ruth Alexander. Produced by Hannah Bewley.

(Image: five students sat on sofas in their shared living space eating a meal they have cooked together. Credit: BBC)

Do you know how much you should drink?

Many global guidelines recommend approximately 2 litres a day for women and 2.5 litres a day for men, including food.

But scientists say there is actually huge variation in how much each of us need as individuals.

Ruth Alexander speaks to Professor John Speakman at the University of Aberdeen in Scotland, who explains why your age, sex, weight, and other environmental factors such as air temperature, humidity and altitude all make a difference.

Dr Nidia Rodriguez-Sanchez, senior lecturer at the University of Stirling in Scotland, explains why our bodies need water and what happens if we drink too little, or too much.

That happened to Johanna Perry in the UK, she tells Ruth what happened when she drank too much water whilst running the London Marathon in 2018.

Presented by Ruth Alexander.

Produced by Beatrice Pickup.

(Image: a woman holding a plastic bottle of water. Credit: Getty Images/ BBC)

Is it possible to taste a place? A listener wonders whether the French concept of ‘terroir’ can apply to food and, if so, what the science behind it is.

Ruth Alexander goes in search of the answer, exploring how growing conditions and practices can develop flavours unique to a location.

She also hears about why the value you give to certain flavours might also be cultural.

Ruth speaks to a honey expert who is mapping the flavours of the sweet syrup across the world, a barley geneticist working with a high-end whisky brand and visits a vertical farm in Liverpool, UK, to see if foods grown in a closed environment still taste just as good.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Presenter: Ruth Alexander

Producer: Hannah Bewley

(Image: A barley field under a setting sun. Credit: Getty Images)

Fancy starting a food truck? It can be a way to trial new food concepts and see if your business has potential before committing to a restaurant premises.

Ruth Alexander finds out what its really like running a food truck or van. She meets customers queuing for over an hour for the SpudBros van in Preston, north-west England, where brothers Harley and Jacob Nelson have drummed up business for their jacket potatoes on social media. Ruth speaks to Anna Brand who runs a vegan food van Vege Bang Bang in Auckland New Zealand, and sisters Natalie and Samantha Mwedekeli who started Mama Rocks, a food van selling gourmet burgers in Nairobi, Kenya in 2015.

Today they have five premises and its time to sell the van that started it all. And Karan Malik talks about his food van SuperSuckers in Delhi, India. He saw the trend take off, but tells Ruth why he decided to get out of the business.

If you would like to contact the programme email thefoodchain@bbc.co.uk.

Presenter: Ruth Alexander Producer: Beatrice Pickup Researcher: Henry Liston

(Image: Brothers Jacob and Harley Nelson in their food van selling jacket potatoes in Preston north-west England. Credit: BBC)

An Indian curry house is one of the most popular places to go out for a meal in the UK, and is part of British life. But many people do not know their origins lie in what is now Bangladesh, after a wave of migration from there in the 1970s.

Devina Gupta traces their history and flavours on Brick Lane in east London, where many people settled and started restaurants. Many have closed over the years, but their legacy lives on. And now more diverse and authentic flavours are becoming popular in the capital and elsewhere.

Presenter: Devina Gupta Producer: Hannah Bewley

(Photo: Brick Lane sign with Bangla language version underneath. Credit: BBC)

Ruth Alexander learns about ‘forever’ foods - stocks, soups and sourdough starters that can be replenished again and again and used for weeks, months or even years.

Ruth hears about a beef soup in Bangkok that has been maintained for 50 years, and she bakes a loaf of sourdough bread using a 69-year-old starter that has been kept going by Hobbs House Bakery in the south-west of England.

Cookbook writer Fuchsia Dunlop in London, UK, talks about the tradition of cooking with an ‘everlasting’ broth in Chinese cuisine.

Annie Ruewerda in New York in the US was charmed by the idea of a perpetual stew, she kept hers going for two months and it became an online hit – bringing hundreds of strangers to her local park to try the stew and add ingredients.

Lee-Ann Jaykus, distinguished professor emeritus and food microbiologist at North Carolina State University in the US explains the food safety rules you need to know if you want to try a perpetual dish at home.

Martha Carlin, distinguished professor of history at the University of Wisconsin-Milwaukee in the US helps unravel the claimed historical origins of perpetual stew.

And our thanks to World Service listeners David Shirley and Mark Wood for telling us about the oldest dishes they have eaten.

Producer: Rumella Dasgupta and Beatrice Pickup Additional reporting by the BBC’s Ryn Jirenuwat in Bangkok, Thailand

(Photo: A huge pot of beef soup in that has been added to over 50 years at a restaurant in Bangkok, Thailand. Credit: David Shirley/BBC)

Social media is awash with videos of people trying out new recipes at home and exploring the best hidden foodie gems in cities around the world.

The stream of content seems endless – so how do the people making these videos keep up?

Ruth Alexander speaks to three people in the UK, USA and Vietnam about having six meals before 10am, the relentless pressure to keep up with viral trends, and what they cook for themselves when the camera is off.

Tod Inskip, Lylla Nha Vy and Jackie Gebel share the highs and lows of being a “content creator” and why they don’t like the term influencer.

Presenter: Ruth Alexander

Producers: Hannah Bewley and Elisabeth Mahy

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

(Image: Lylla Nha Vy, Tod Inskip and Jackie Gebel. Credit: Composite BBC)

If you’re a light or moderate drinker, the World Health Organization wants you to know that no level of alcohol is safe for your health.

But just how big is that risk and might it be one you’re willing to take? And what happened to the idea that a glass of red wine might be good for you?

In this programme Ruth Alexander finds out about the studies the guidance has been based on, and the statistical risk of dying from alcohol-related disease.

Dr Tim Stockwell, Scientist at the Canadian Institute for Substance Use Research, is the author of a meta-analysis of 107 studies that look at the links between ill health and alcohol. Professor Sir David Spiegelhalter is Emeritus Professor of Statistics at the University of Cambridge in the UK, he explains how we can make sense of risk as individuals.

And Anna Tait in the UK, Amelie Hauenstein in Germany, David Matayabas in the US and Bill Quinn in Australia talk about how much alcohol they drink, and what moderation looks like to them.

Presented by Ruth Alexander.

Produced by Beatrice Pickup.

(image: four hands raising pints of beer in a ‘cheers’ gesture. Credit: Getty Images/BBC)

Is it worth taking collagen? With cosmetic companies and A-listers claiming it can slow the effects of ageing, the market for collagen supplements is booming. How sure is the science though?

Ruth Alexander speaks to experts about what we do and don’t know about what these powders, gels and capsules are doing inside our bodies.

She hears from a personal trainer and runner in her 50s about why she takes it daily, and speaks to the CEO of a company selling collagen products in this increasingly competitive market.

New avenues of research are opening up as well, with sports scientists investigating whether an increase in collagen production can help athletes recover from injury more quickly.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Presenter: Ruth Alexander

Producer: Hannah Bewley

(Image: A serving of supplement powder. Credit: Getty Images)

Have you visited a food hall recently? It’s a venue bringing together multiple independent food and drink businesses, often with communal seating.

We look at the ways in which food halls are being used to bring consumers and spend to new areas, raising the value of surrounding offices, apartments and other businesses.

In this programme Devina Gupta visits Society food hall in Manchester in the UK, where she meets Julia Martinelli, who manages the pizza offering from Noi Quattro restaurant and Reece Gibson, operations manager for Vocation Brewery which runs the bar.

Mariko Oi in Singapore reports from the Maxwell Hawker Centre in Singapore, to explore how today’s food halls have evolved from street food traders.

Frode Rønne Malmo from Mathallen in Oslo, Norway and Spiros Loukopoulos, from Reffen in Copenhagen, Denmark talk about the ways in which their food halls have brought people to the surrounding area. Food hall consultant Philip Colicchio in New York in the US explains why this business model has been so popular.

Presented by Devina Gupta.

Produced by Beatrice Pickup.

Additional reporting by Mariko Oi.

(Image: a man and a woman enjoying plates of food in a food hall. Credit: Getty Images/BBC)

Strawberries at the airport when meeting your future husband for the first time, finally tasting world famous fish and chips and wondering why on earth the pasta is green.

These are some of this week’s stories of first impressions of food in a new country.

Devina Gupta visits a multilingual cooking class in Manchester, UK, to find out how language, culture and food help people find a home in a new part of the world..

She speaks to a chef who fled Ukraine when the war started and now runs a restaurant in the Netherlands. Nathalia adapted to life there very quickly, but still can’t comprehend why the Dutch eat toast for every meal.

Mariyam and Marius share their love story from across continents, and talk about the dishes – and those strawberries - which brought them together when they finally met.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Presenter: Devina Gupta Producer: Hannah Bewley Translation: Irena Taranyuk (Image: Devina Gupta has afternoon tea. Credit: BBC)

Have you heard of ‘super sweet’ sweetcorn?

If you’ve purchased fresh, frozen or tinned sweetcorn in the last few decades there’s a good chance its the super sweet variety. It’s an example of how our fruit and vegetables have been bred over time to make them sweeter, or less bitter. Its partly about appealing to consumer tastes, but can have other advantages such as better storage and reducing food waste.

In this programme Ruth Alexander finds out how and why the taste of our fresh produce is changing, and asks if we’re gaining sweetness, what are we losing?

Ruth visits Barfoots farm on the south coast of England, the biggest supplier of fresh sweetcorn in the UK, all of it super sweet varieties. Plant breeder Dr Michael Mazourek at Cornell University in the United States explains how selective breeding works, and what sort of characteristics have been prioritised by the food industry. Dr Sarah Frith, vet at Melbourne Zoo in Australia explains why they’ve stopped giving fruit to the animals. And Dr Gabriella Morini, chemist at the University of Gastronomic Sciences in Italy explains the latest research on bitter flavours, and why they might be good for us.

If you’d like to contact the programme email thefoodchain@bbc.co.uk

Presented by Ruth Alexander.

Produced by Beatrice Pickup.

(Image: corn on the cob in the husk, with a background image of a field of sweetcorn plants. Credit: BBC)

Three million bananas; 600-800 baguettes a day; 47,000 plates...as the world’s elite sportsmen and women arrive in Paris, a huge catering operation awaits them.

Ruth Alexander finds out what it takes to keep the athletes happy and fuel a medal-winning performance.

Team GB pole vaulter Holly Bradshaw talks about her relationship with food during her years as an athlete, and why she’s looking forward to retirement after Paris 2024.

Alicia Glass, senior dietician for Team USA, gives an insight in to how a peanut butter and jelly sandwich at the right time can make a big difference.

Reporter Michael Kaloki in Nairobi drops in on Kenya’s sprinters while they’re having lunch to find out what’s on their plates.

And the head of catering for the London 2012 Games Jan Matthews offers advice for the team in Paris this year on how to keep athletes who need a lot of fuel happy.

This programme includes conversations about losing and gaining weight, goal weights and difficult relationships with food that some listeners might find upsetting.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Presenter: Ruth Alexander

Producers: Hannah Bewley, Elisabeth Mahy and Michael Kaloki

(Image: Holly Bradshaw, Team GB pole vaulter, wins bronze at Tokyo 2020. Credit: Reuters)

Why do we cook? To create flavour, to aid digestion and to release nutrients from our food.

Every time we fry, steam, boil, or bake a series of chemical reactions take place that are key to a dish’s success.

In this programme Ruth Alexander puts questions from the BBC World Service audience to Dr Stuart Farrimond in the UK, author of ‘The Science of Cooking’. Susannah and Aaron Rickard in Australia tell Ruth about the chemical reactions they discovered when researching their cookbook ‘Cooking with Alcohol’. And Krish Ashok in India, author of ‘Masala Lab: The Science of Indian Cooking’, explains the science behind the culinary wisdom of your parents and grandparents.

If you’d like to contact the programme email thefoodchain@bbc.co.uk

Presented by Ruth Alexander.

Produced by Beatrice Pickup.

(Image: two young girls wearing goggles and aprons conducting a science experiment. Credit: Getty Images/ BBC)

Of the tens of millions of people around the world with autism or down syndrome, only a tiny fraction is in paid employment.

But cooking, making drinks and waiting tables is work where people with learning disabilities can shine.

John Laurenson takes us to a Café Joyeux (Happy Café) in Paris, one of a fast-growing chain of cafe-restaurants where most of the staff have autism or down syndrome and where the croque monsieur comes with a smile.

We also hear from a cafe in Mumbai launched by the mother whose daughter has autism and, in Turkey, the KFCs with a difference.

Find out how café work can transform the lives of employees and owners.

Presenter/Producer: John Laurenson

(Image: Louis, Laura, Anne-France and Arnaud. Credit: BBC)

Taste, it turns out, is not a matter of opinion. Scientists have discovered that your perception of taste is informed by your genetics.

When we eat or drink something, we may be having an entirely different experience to the person we’re sharing a meal with, or the chef who has prepared it, or the critic who has recommended it.

In this programme Ruth Alexander explores her likes and dislikes and how they might be informed by biology.

Ruth meets Laura Kent of the Yorkshire Wine School in the UK who helps her learn about her sensitivity to acidic and bitter flavours. Ruth speaks to Anne Fadiman, writer and Professor of creative writing at Yale University in the US, who dislikes wine, despite her wine critic father loving it. Danielle Reed, Chief Science Officer at the Monell Chemical Senses Center in Philadelphia, US, explains the science. Tim Hanni, Master of Wine, and author of ‘Why You Like The Wine You Like’ argues that the wine industry is not paying enough attention to individual tastes. Where does this new science leave wine competitions? David Kermode, judge at the IWSC, International Wine and Spirits Competition, makes the case for the experts.

If you'd like to contact the programme, please contact thefoodchain@bbc.co.uk.

Presented by Ruth Alexander. Produced by Beatrice Pickup.

(Image: three people tasting wine. Credit: Getty Images/BBC)

More of us are living in cities and urban farming is on the rise. Can you be sure the city soil you’re growing in is clean enough?

Industry and traffic can contaminate land, but there are ways to deal with the problem.

Ruth Alexander finds out how to test soil, how to clean it, and which fruit and vegetables are the safest to grow on former industrial and commercial sites.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

(Picture: A garden trowel with some soil on it)

Producer: Hannah Bewley

What’s it like spending 24 hours a day together? Ruth Alexander speaks to couples who run restaurants. She hears how they met, what they argue about and why being a couple might be good for business.

Ruth visits Andrea Follador and Jazz Navin at ‘The Perfect Match’ restaurant in Sale, in the North West of England. Jazz is the chef and Andrea is the sommelier, the two met working at Gordan Ramsay’s ‘The Savoy Grill’ in London. Ruth speaks to Francisco Araya and Fernanda Guerrero, chefs who have lived and worked together in their native Chile, China, and now Singapore where they run fine dining ‘Araya’ restaurant. Rita Sodi and wife Jody Williams ran a restaurant each, and then decided to open one together, 'Via Carota' in New York, United States. Today they run five bars and restaurants together in the city.

If you would like to get in touch with the show please email thefoodchain@bbc.co.uk.

Presented by Ruth Alexander.

Produced by Beatrice Pickup.

(Image: Andrea Follador and Jazz Navin who run ‘The Perfect Match’ restaurant together in North West England. Credit: BBC)

In a world where ingredients cost more due to war and inflation how is easy is it to make and sell our daily bread?

Ruth Alexander speaks to three bakers about how they started in the industry, the highs and lows and economic pressures in their part of the world.

Alex Oke is the owner of XO Boutique Bakery in Lagos, Nigeria, Tracey Muzzolini is the owner of Christies Mayfair Bakery in Saskatoon, Canada and Samer Chamoun is the owner of The Lebanese Bakery, a chain of 12 branches including Beirut, Cairo and London.

Presented by Ruth Alexander.

Produced by Rumella Dasgupta.

(Image: Alex Oke holding a loaf of Nigerian agege bread and Tracey Muzzolini holding a loaf of sourdough bread. Credit: Donna Martins/Chelsea Walton/BBC)

Ruth Alexander speaks to patients about their experiences of weight-loss drugs.

The new class of drugs impact appetite, making you feel full sooner, and slowing the rate at which your stomach empties. Known as GLP-1 medications, studies suggest that patients can lose 10% or even up to 25% of their body weight depending on which drug they use. For many who have struggled with obesity and obesity related disease the drugs have the potential to transform their health.

However some patients have struggled with the side effects of the drugs and the manufacturers’ own studies indicate that if people stopping taking them, much of the weight lost is regained, making them drugs for life for some.

Ruth Alexander speaks to Professor of Cardiometabolic Medicine, Naveed Sattar, at Glasgow University who is Chair of the UK government’s obesity mission. He explains how these drugs work and the potentials costs and savings for the National Health Service, or NHS. Adrienne Bitar, historian at Cornell University in New York, is the author of ‘Diet and the Disease of Civilization’, a study of diet books of the 20th century. She explains the ideas diet culture is built on. And Ruth asks Gary Foster, Chief Scientific Officer at WeightWatchers, what these weight-loss drugs will mean for the multi-billion-dollar diet industry.

Presented by Ruth Alexander.

Produced by Beatrice Pickup.

Image: Michelle Herum in Denmark who currently uses a weight loss drug. Credit: Hanne Juul/BBC)

Devina Gupta takes a food tour of her home city of Delhi to see how people are adapting to rising summer temperatures.

In May this year the city saw a record temperature of almost 50C, and knowing what to eat in such heat can be a challenge.

The changing climate is sparking innovative recipes in restaurant kitchens and bringing traditional practices back to people’s kitchens.

Devina tries old favourites at street markets, a modern twist on a classic drink at a high end restaurant and is (almost) convinced that a vegetable she has hated since childhood might work wonders in the heat.

She hears from public health expert Dr Samar Husayn about why the cold, sweet treats you might reach for on a hot day aren’t always the best.

And she sees the difference between how those who have air-conditioned homes and those who don’t are coping.

Presenter: Devina Gupta

Producer: Hannah Bewley

(Image: A bowl of gourd dip with restaurant workers in the heat in the background. Credit: BBC)

Ruth Alexander explores the origins and evolution of the humble grab-and-go food the burrito, which started life in northern Mexico, before crossing over into the US and becoming a hit around the world.

Versions of the spicy wrap can be enjoyed in restaurants, street food shacks and supermarket home meal kits all over the world.

We explore the burrito’s contested origins, find out why some Mexican food purists dislike the popular menu item and ask what the future holds for it, and the cuisine more broadly.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

(Picture: a burrito in a restaurant in Juarez, Mexico. Credit: Vianey Alderete Contreras/BBC)

Presented by Ruth Alexander. Produced by Sam Clack. Additional reporting by Vianey Alderete Contreras in Juarez, Mexico and El Paso, United States.

Cows emit greenhouse gases when they eat, which contributes to global warming. But is it possible to produce meat in a climate-friendly way?

Grace Livingstone visits a carbon neutral certified ranch in Uruguay, where farm manager Sebastian Olaso shows her around. She also meets Javier Secadas, a small farmer who raises cattle on natural grasslands, and agronomist Ignacio Paparamborda, from the University of the Republic in Montevideo.

Grace hears from Pete Smith, Professor of Soils and Global Change at the University of Aberdeen, and Dominik Wisser, Livestock Policy Officer, from the United Nations’ Food and Agriculture Organisation.

She tries to find out if it is possible to produce meat in a way that is both good for nature and the climate. Or whether we need to stop eating meat to cut emissions.

Presenter/Producer: Grace Livingstone (Image: Cows grazing in Uruguay. Credit: Getty Images)

Why eat with your hands?

Many food cultures around the world eat using hands, and most of us use our hands some of the time. Do we really need cutlery or chopsticks to eat a salad, peas or rice? And if you were to tackle soup or stew with your hands, how would you go about it?

Michael Kaloki reports from Nairobi, Kenya, where the staple dish ugali, made from maize flour, is traditionally eaten by hand. Michael has observed that people increasingly use cutlery to eat the dish, and he speaks to restaurateurs and customers about why that might be, and what might be lost.

Ruth Alexander learns about the etiquette of eating by hand with food writer and consultant Karen Anand in India. And Ruth explores whether food might be more enjoyable, and even taste better, when eaten by hand. Psychologist Professor Charles Spence from Oxford University, and chef Jozef Youssef of Kitchen Theory in the UK share their research.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Presented by Ruth Alexander.

Produced by Beatrice Pickup.

Reporting by Michael Kaloki in Nairobi, Kenya.

(Image: a man’s hands, pulling apart a sweet cake wrapped in dough, with sauce on his hands. Credit: Getty Images/ BBC)

Stunning cakes, colourful salads and intricate garnishes use flowers to entice customers, but there’s more to this trend than just beautiful social media pictures.

Many cultures around the world have eaten flowers for centuries, and some of them pack a serious punch.

Devina Gupta explores the history of edible flowers and visits a site in the UK where they’re grown all year round. She gets quite a shock when trying one particular variety.

We find out why flowers are used on food nowadays, and how generations of knowledge about their use and properties were lost when they were brought to Western countries.

If you would like to get in touch with the programme, email thefoodchain@bbc.co.uk.

Presented by Devina Gupta

Produced by Julia Paul and Beatrice Pickup

(Image: A nasturtium flower growing. Credit: BBC)

Do you know how much salt you should be eating?

And if I tell you it’s less than 5 grams a day, do you know how much that is?

Ruth Alexander explores the wonder of salt and why chefs think their job would be pointless without it and why the impact it’s having on the food might surprise you.

Professor Paul Breslin tells us about the “magical” chemical reaction happening on your tongue when you eat salt, and why your brain responds to that.

We hear about what eating too much salt can do to you from an expert in Australia, as well as a mother in Kazakhstan who cut out salt almost completely – in a country which has one of the highest consumptions in the world.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Presented by Ruth Alexander

Produced by Hannah Bewley

(Image: A chef sprinkles salt on a pan of food. Credit: BBC)

Over two million people work in the international shipping trade, and they are often at sea for months at a time.

That’s a lot of meals being made by the cook on board, and their work is crucial for keeping the crew happy.

Ruth Alexander hears from seafarers about why that makes “cookie” the most important person on board a ship and why, in some cases, crew members are going hungry.

A former captain of merchant vessels tells us how food is used for so-called “facilitation payments” to corrupt officials, and why crews can sometimes be powerless to stop port officials filling up suitcases with food from the ship’s stores.

We also hear about international efforts to try to tackle corruption in ports and increase welfare standards for seafarers.

If you would like to share your own experience, please email: thefoodchain@bbc.co.uk

Presenter: Ruth Alexander

Producers: Izzy Greenfield and Hannah Bewley

(Image: A container ship at sea. Credit: Getty Images)

What’s the secret behind the on-screen chemistry shared by some TV chef duos?

The recent death of Dave Myers, one half of ‘The Hairy Bikers’ with Si King, has prompted this programme celebrating successful food friendships. Dave and Si made food shows and cookbooks that took their fans all over the world, and off-screen they were close friends.

In this programme Ruth Alexander speaks to two chefs who have found success in food with a good friend.

Ruth Rogers, co-founder of The River Cafe restaurant in London, talks about her partnership with the late Rose Gray, who died in 2010. Together they presented ‘The Italian Kitchen’ for Channel 4 in the UK in 1998.

Italian chef Gennaro Contaldo talks about his long friendship and work with the late chef Antonio Carluccio, and the TV series they made together for the BBC, ‘Two Greedy Italians’ in 2011 and 2012. Gennaro also talks about his friendship with the chef Jamie Oliver to whom he’s been a mentor.

Presented by Ruth Alexander.

Produced by Beatrice Pickup.

(Image: Ruth Rogers and Rose Gray plating dishes at The River Cafe restaurant in London. Credit: Maurice ROUGEMONT/Getty Images/ BBC)

Why are humans so vulnerable to big promises about food? Emily Thomas meets some people who became convinced salvation lay in what they ate, and a neurologist who explains why food can make us lose our powers of critical thinking. Plus, the story of a woman who fooled hundreds of thousands of people - as well as vast corporations - into believing she’d cured brain cancer with her diet.

*This is not a programme about a food that will save your life.

(Picture: Black pot. Credit: Getty Images)

Three women who fled the countries they were born in because of war or conflict tell us how food helped them rebuild their lives, explore family secrets, and reconnect with their cultures.

Their experiences are very different, but they all share a yearning to regain what they have lost through food. Emily Thomas talks to Razan Alsous, a Syrian refugee who has built a successful cheese business in the north of England; Cambodian-American Nite Yun who has used her cooking business to understand the family history that her parents never spoke of; and Mandana Moghaddam who runs Persian cooking lessons in London, having fled Iran with her family after the revolution.

(Photo: Barbed wire heart. Credit: Getty Images)

The world’s first genetically engineered animal for human consumption landed on Canadian dinner tables last year. Its arrival did not go by without controversy. Emily Thomas meets the company who created the fast-growing salmon and asks why it took the best part of thirty years for it to make its slow swim from laboratory to plate.

Plus, we gauge reaction from consumers and scientists and get to the heart of an emotive and controversial debate that has been raging for decades: Is genetic engineering a distraction from addressing the real issues of animal welfare and economic inequality in the food system? What are the risks, and is the public ready for it?

(Picture: Cow on the horizon, Credit: Getty Images)

A deadly and highly contagious disease is spreading across Europe's pig farms. African Swine Fever Virus doesn't harm humans, but once it infects domestic and wild pigs almost all of them die through internal bleeding within days.

More than a million pigs are thought to have died as a result of the latest outbreak, devastating hundreds of farms and damaging exports. It's the first time the virus has ever hit Europe's pig farming heartland. With a vaccine still years off, and amid fears the disease could reach as far as China, we ask if the virus can be stopped, and how. Emily Thomas meets people who think the answer lies in building fences between countries, genetically engineering pigs, and even calling in the army to hunt down disease-spreading wild boar.

(Picture: A pig in a sty. Credit: Getty Images)

Can you think of a food you would travel across continents for?

Emily Thomas meets people who have gone to extreme lengths for one special meal or ingredient. From a writer searching for a fruit in West Africa to better understand his ancestors, to a curry-lover who chartered a plane to deliver his favourite Indian takeaway.

What is the difference between a food pilgrim and a food tourist, and what dangers might culinary travel bring? Plus, what happens when an entire country decides no distance is too great for its favourite fish?

(Photo: Man with backpack looking into distance. Credit: Getty Images)

If you could not taste your food, what would you eat? Would you even want to? Taste disorders are rare, but they can have devastating impacts on people's lives. They can also tell us a lot about our food.

Emily Thomas meets a cookery writer who says she wanted to die after a car accident robbed her of taste. But as the sense slowly returned she became a more experimental cook.

And a man who has not been able to taste anything for five years, explains how it has changed his social life, and how he has found innovative ways to enjoy his food.

Plus, we hear calls for more research to develop treatments for these disorders, and how taste could be key in the early diagnosis of dementia.

(Photo: A hand holding a black apple. Credit: Getty Images)

Chef Gordon Ramsay is world-famous but, he tells us, people no longer want to talk about his food. The celebrity has become known as much for his cookery programmes, his fiery temper and explosive outbursts, as for his culinary skills.

This week, the focus is back on the food, as Gordon speaks to Emily Thomas about the five most memorable meals he has ever had and how they have shaped him as a chef - from his mother’s macaroni and cheese on a council estate in the West Midlands, to smuggled cheese soufflés at Le Gavroche.

Gordon's dishes are: Mum's Mac and Cheese with smoked bacon; soufflé Suissesse at Le Gavroche; braised pigs' trotters with cabbage at Casa Del Pescatore near Verona; rum baba at Le Louis XV; and his own chickpea curry.

(Photo: Gordon Ramsay. Credit: BBC/Getty Images)

Wine has been getting more and more alcoholic in recent decades, driven by consumer tastes and climate change. This has big implications not only for public health, but also the quality of the bottle.

But making a lower alcohol wine that is still full of flavour is extremely complicated, especially when growing grapes in rising temperatures – some have called it the profession’s Holy Grail.

Emily Thomas meets those trying to solve the puzzle: a Chilean vineyard owner; a climate change and grape variety academic; and an Australian scientist whose raspberry-flavoured Chardonnay could hold the key.

(Picture: Wine cellar. Credit: Getty Images)

Does food ever make you laugh out loud? We try to stand up the theory that food is getting funnier because modern diets make it a richer sauce of comedy.

Comedy about food seems to have moved a long way from oddly shaped vegetables and Charlie Chaplin slipping on a banana skin, to something more nuanced. Now we seem to be laughing at the way we eat - with ever more comedy acts, TV programmes and YouTube videos poking fun at diet trends, restaurant customs and cookery shows. Has the way we eat become so obsessive and complicated - that food has quite literally become a laughing stock?

Emily Thomas meets comedians JP Sears, Tats Nkonzo and Alex Thomopoulos, and comedy expert Delia Chiaro to explore the comedy potential of food. You know, just for laughs.

(Photo: A king feasting alone in a banquet hall. Credit: Getty Images)

Technology giants are gobbling up the online grocery market - and over the past year we’ve seen Amazon and Alibaba getting their teeth into bricks and mortar too.

But do they want to transform the supermarket experience, or is this about harvesting even more consumer data?

And what will all of this mean for farmers, your pocket, and the quality and sustainability of your food?

Emily Thomas discusses with Brittain Ladd, a strategy, supply chain and logistics expert who formerly worked for Amazon leading worldwide expansion for Amazon Fresh, Pantry and Groceries; Scott Marlow, senior policy specialist for Rural Advancement Foundation International, a non-profit organization based in North Carolina supporting family farms; and Amanda Long, Director General of Consumers International, which works to empower and champion the rights of consumers.

Plus, we visit Farmdrop, a London-based startup which aims to give customers a more ethical online shopping experience.

(Photo: a picture of the hand of a young man holding an ice lolly against a pink background. Credit: Getty Images)

Have you ever wondered what to do with a watermelon outside the kitchen? Or how many hot dogs a person can eat in 10 minutes?

It's time to find out with The Food Chain Quiz 2017. Get ready for some strange but wonderful food stories and play along with our two teams: chef Cyrus Todiwala and La Fromagerie founder Patricia Michelson versus food historian Marc Meltonville and Ghanaian food writer and TV cook Fafa Gilbert.

Emily Thomas hosts this challenging and at times bizarre battle for the coveted wooden spoon.

Rounds include: What Happens Next? What’s this Sound? And back by popular demand …. The Lucky Dip.

(Photo credit: Getty Images)