Episode notes
Are you hungry? How often do you stop to think about why that is and what sort of foods you are hungry for? In this programme Ruth Alexander explores the science of appetite – what causes us to feel hungry and full and why our appetites differ from one person to the next. Geneticist Professor Giles Yeo at the University of Cambridge in the UK explains how much of our appetite is informed by our genes and how much by our environment. Registered public health nutritionist Federica Amati, author of 'The Appetite Reset', explains what happens in our gut to help us feel full, not just immediately…
Podcast
The Food Chain
BBC World Service · Food & Cooking · English
BBC World Service's weekly exploration of food economics and culture — from farmers to supermarkets, from feast to famine.
More from The Food Chain All episodes →
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30 Sep 2026 · 26 min
How to eat for success on weight-loss drugs
Weight-loss medication, or GLP-1s as they are also known, are designed to suppress your appetite - so how do you make every mouthful count? Ruth Alexander looks into what happens to the body on these drugs and what it feels like to take them. She learns why it's vital to change your diet to minimise side effects like nausea and constipation and to avoid vitamin and mineral deficiencies. Plus why what you eat before you start taking the medicines also matters, and how to give yourself the best chance of coming off them without regaining all of your weight. Ruth Alexander talks to UK based…
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23 Sep 2026 · 26 min
Culture shock
Imagine not recognising the food in the shops, markets and restaurants around you. Moving to a new country to live and work can come with some culture shocks and food can be a big part of that. Ruth Alexander speaks to people who have lived in different countries. Listener Jen Ballantyne in the UK has taught in Japan, Tanzania, Azerbaijan and Brunei. Chinese Canadian chef Kelvin Cheung has lived in Belgium and India and today has a restaurant called Jun's in Dubai. Miwa Kishi is a Japanese cookery teacher living with her family in The Netherlands. We also hear from listener Juanita Ruiz a…
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16 Sep 2026 · 26 min
Is a healthy diet more expensive?
Is it more expensive to eat healthily? You might think the answer is simple: Yes of course, if you buy fruits, vegetables, beans and pulses and cook from scratch. But is it that easy? With the help of the UN's Food and Agriculture Organization, Ruth Alexander finds out where in the world a healthy basket of food costs the most, and why globally, billions of people are priced out of a nutritious and varied diet. She hears from Frances in Nigeria, struggling to afford healthy basics for her family, and from Aurora in the US state of Arizona, who is out of work and has lost the food benefit…
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9 Sep 2026 · 26 min
What do chefs eat?
Ever wondered what the chef is eating? Snacking on the finest produce or surviving on thin air and caffeine? In this episode Ruth Alexander speaks to three chefs about how they get through the day, and the importance of the ‘family’ or staff meal. She’s joined by Juliette Feller, a Swiss chef working in London, Marisha Shukla a pastry chef in Bengaluru India, and Sam Grainger, an exec chef and restaurateur in Manchester in England. You can contact the programme by emailing [email protected] . (Image: from left to right, Juliette Feller wearing a pinstripe blazer, Marisha Shukla wearing…
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19 Aug 2026 · 26 min
The regulars
Do you have a local cafe, restaurant or bar that you go to all the time? Maybe the staff recognise you or know you by name, perhaps you even get special treatment. In this programme Rumella Dasgupta finds out why people like to return to the same place, and the commercial value to a business of having regular customers. You can contact the programme by emailing [email protected] . Produced by Izzy Greenfield. (Image: a man sat at a bar chatting to a barman who is wearing an apron and cleaning a glass. Credit: Getty Images)
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