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The Food Chain
How to feed a city
The Food Chain
Oct 11, 2023

More than half of us globally now live in cities. The United Nations estimates that by 2050, that number will be closer to seven out of ten of us.

How can growing cities feed their populations?

In this programme Ruth Alexander finds out about the history of how cities grew to their current scale, and some potential solutions to meeting their food needs.

Carolyn Steel, architect and author of ‘Hungry City’ meets Ruth in London, United Kingdom, to talk about the role of transport and markets in making London the city it is today. Ruth hears about Tokyo, Japan, a city that has spread around ancient farmland rather than build on it. She speaks to Yu Tominaga and Mayumi Kawaguchi who own Hasune farm in central Tokyo, and Professor Makoto Yokohari who studies urban farming at the University of Tokyo.

In Namibia, our reporter Frauke Jensen Röschlau reports on the role of informal food vendors on the streets of Windhoek, she interviews Professor Ndeyapo Nickanor, an expert in food security at the University of Namibia.

If you’d like to contact the programme you can email [email protected].

Presented by Ruth Alexander.

Produced by Beatrice Pickup.

Additional reporting by Frauke Jensen Röschlau.

(Image: commuters walking on a street in Tokyo. Credit: Getty Images/BBC)

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Jun 11, 2026
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In this episode of The Food Chain, Rumella Dasgupta explores the growing evidence that sound can shape the way we experience food and drink. From scientists studying how the brain combines hearing and taste, to chefs designing dishes around playlists, we ask whether music has become an ingredient in its own right.

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But not everyone is convinced. Dan Keeling, co-owner of London's Noble Rot restaurants and a former music industry executive who signed artists including Coldplay and Lily Allen, explains why he has chosen not to play music in his dining rooms at all.

From silent restaurants to carefully curated playlists, from neuroscience labs to commercial dining rooms, we explore the increasingly important role sound plays in the way we eat.

If you'd like to get in touch with the programme, please email: [email protected]


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May 27, 2026
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We also hear from Judith von Prockel, who began creating holidays centred around food experiences more than two decades ago, long before culinary tourism became mainstream. She reflects on how attitudes towards food travel have changed and why people are increasingly planning trips around what they want to eat.

And in Malaysia, Pauline Lee from Simply Enak describes the work involved in creating memorable food tours in a growing and increasingly competitive market, where guides must balance logistics, hospitality and cultural storytelling alongside the food itself.

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If you’d like to get in touch with the programme, please email: [email protected]

Producer: Izzy Greenfield Sound engineer: Andy Mills Picture: Simple Enak


26min 28sec


How to feed a city

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