Evolutionary biologist Daniel Lieberman challenges one of our most persistent beliefs about weight loss: that if you can’t stick to a diet, you simply need more discipline.

He explains why our bodies evolved to hold onto fat, why willpower can only take us so far, and how diet culture has turned eating into a cycle of guilt and shame.

Daniel also shares the story of his own mother, whose obsession with avoiding fat came at a cost later in life, and introduces a simple way to spot bad advice: are you thinking like a fox, embracing nuance, or a hedgehog, convinced one idea explains everything?

His message is simple: there is no perfect diet. There are only trade-offs, and understanding them might change the way you think about food, health and your own body.

Daniel's latest book Fed Up is out now https://www.penguin.co.uk/authors/59539/daniel-lieberman

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Why Diets Always Fail: Harvard Professor Exposes Food Myths | Daniel Lieberman (E439)

The High Performance Podcast

Why Diets Always Fail: Harvard Professor Exposes Food Myths | Daniel Lieberman (E439)