We're in a new age of eating, but how is ultra processed food harming our bodies - and the world?

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00:00 Why we need to talk about our diets
03:40 We’re part of an experiment we didn’t sign up for
10:05 What is ultra processed food?
12:50 What Donald Trump got right about UPF
14:20 What Diet Coke does to your health
17:53 How ultra processed food is made
23:55 Why does ultra processed food cause obesity?
29:05 Doesn’t exercise burn calories?
35:37 What about willpower and diet?
38:18 What role do stress and genes play?
39:45 How does ultra processed food harm us?
47:33 How UPF affects the planet
50:41 Ultra processed food is addictive
52:25 The food system is financialised
54:28 What are the solutions?

This lecture was filmed at the Ri on 19 September 2023 through the generous support of Digital Science.

The industrialisation and commercialisation of food have transformed our diets, whereby most of our calories now come from an entirely novel set of substances. Ultra Processed Food (UPF) now makes up 60% of the average diet in the UK and USA. It is highly processed, highly addictive, and largely unhealthy.

Join award-winning broadcaster, practising NHS doctor and leading academic Chris van Tulleken as he explores the invention of UPF and its impact on our health and weight – from altering metabolism and appetite to an increased risk of cardiovascular disease and tooth decay.

Chris uncovers the limitations of relying solely on exercise and willpower to combat the health risks of high UPF diets. Drawing on his own experiment of eating an 80% UPF diet for one month he provides solutions for both individuals and policymakers to challenge this unregulated industry.

Chris van Tulleken is an infectious diseases doctor at UCLH and one of the UK’s leading science broadcasters. He has won two BAFTAs for his long-running CBBC series Operation Ouch, co-presented with his twin brother Xand, and hosted numerous programmes across the BBC. Following his BBC One documentary ‘What Are We Feeding Our Kids?’ and the chart-topping podcast ‘A Thorough Examination – Addicted to Food’, Chris has become the UK’s go-to expert on ultra-processed food.

Chris trained at Oxford and has a PhD in molecular virology from University College London, where he is now an Associate Professor. His research focuses on how corporations affect human health, especially in the context of nutrition.

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