New York Times Bestseller Longlisted for the Baillie Gifford Prize Shortlisted for the Waterstones Book of the Year “A fearless investigation into how we have become hooked.” ― Financial Times A manifesto to change how you eat and how you think about the human body. It’s not you, it’s the food. We have entered a new age of eating. For the first time in human history, most of our calories come from an entirely novel set of substances called Ultra-Processed Food. There’s a long, formal scientific definition, but it can be boiled down to this: if it’s wrapped in plastic and has at least one ingredient that you wouldn’t find in your kitchen, it’s UPF. These products are specifically engineered to behave as addictive substances, driving excess consumption. They are now linked to the leading cause of early death globally and the number one cause of environmental destruction. Yet almost all our staple foods are ultra-processed. UPF is our food culture and for many people it is the only available and affordable food. In this book, Chris van Tulleken, father, scientist, doctor, and award-winning BBC broadcaster, marshals the latest evidence to show how governments, scientists, and doctors have allowed transnational food companies to create a pandemic of diet-related disease. The solutions don’t lie in willpower, personal responsibility, or exercise. You’ll find no diet plan in this book―but join Chris as he undertakes a powerful self-experiment that made headlines around the world: under the supervision of colleagues at University College London he spent a month eating a diet of 80 percent UPF, typical for many children and adults in the United States. While his body became the subject of scientific scrutiny, he spoke to the world’s leading experts from academia, agriculture, and―most important―the food industry itself. But more than teaching him about the experience of the food, the diet switched off Chris’s own addiction to UPF. In a fast-paced and eye-opening narrative he explores the origins, science, and economics of UPF to reveal its catastrophic impact on our bodies and the planet. And he proposes real solutions for doctors, for policy makers, and for all of us who have to eat. A book that won’t only upend the way you shop and eat, Ultra-Processed People will open your eyes to the need for action on a global scale.

Recommended on 1 episode:

GLP-1s and the ‘Wild West’ of Wellness

Here’s a shocking number: One out of eight American adults is taking a GLP-1, like Ozempic or Zepbound, according to a KFF poll. GLP-1s are the biggest pharmaceutical story since antidepressants. But there’s still so much we don’t know. “We’re only at the beginning of what’s been called this Ozempic era,” the journalist Julia Belluz told me. “I think we’re really just at the beginning of discovering the benefits and the harms of these drugs.” These discoveries begin in the research but are also expanding into how we think about our punishing beauty standards and the blurry lines between illness and wellness. Belluz is a contributing Opinion writer and the author, with Kevin Hall, of “Food Intelligence.” She’s one of the best health and science reporters I know and has been reporting on GLP-1s for years. In this conversation, Belluz takes me through what we know — and don’t know — about GLP-1s, their unexpected uses, how they are clashing with a culture obsessed with thinness and looksmaxxing, and whether everyone should be on them.

Books recommended:

• 📕  Behave: The Biology of Humans at Our Best and Worst by Robert M. Sapolsky
• 📘  The Poison Squad: One Chemist's Single-Minded Crusade for Food Safety at the Turn of the Twentieth Century by Deborah Blum
• 📗  Ultra-Processed People: Why We Can't Stop Eating Food That Isn't Food by Chris van Tulleken

Julia Belluz May 8, 2026 3 books recommended

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