Science Weekly Science Weekly

Do any diets actually work?

Sep 22, 2026 · 17m

Summary

Harvard evolutionary anthropologist Daniel Lieberman discusses his new book, *Fed Up*, which evaluates popular diets like paleo, low-carb, and intermittent fasting through an evolutionary lens. He debunks myths surrounding saturated fat and the "magic bullet" approach to health, arguing that while specific foods like legumes are safe, the Mediterranean diet offers the strongest evidence for longevity and disease prevention. Lieberman advocates for a "fox" mindset of dietary moderation and variety over the "hedgehog" strategy of strict elimination, emphasizing that no single diet perfectly o…

Topics discussed

Sponsor: Quo Business Phone System Lead Human Podcast Promo Introduction: The Confusion of Modern Diets Guest Intro: Prof. Daniel Lieberman and his book 'Fed Up' Debunking the Paleo Diet: Grains and Legumes Hunter-Gatherer Diets and the Myth of Anti-Nutrients Why Paleo is Popular: The Naturalistic Fallacy Saturated Fat: History, Genetics, and the Olive Oil Wager The Low-Fat Movement and Rise of Ultra-Processed Foods Practical Advice: Unsaturated Fats and Dairy Sponsor: Quo Business Phone System (Repeat) Intermittent Fasting: Metabolic Switching and Benefits Calorie Restriction and Longevity: The Macaque Studies The Mediterranean Diet: The Most Evidence-Based Approach Fox vs. Hedgehog: Complexity vs. Magic Bullet Diets Conclusion and Book Recommendation Credits and Outro Sponsor: Rinse Laundry Service Lead Human Podcast Promo (Repeat) Sponsor: Washington Wise by Charles Schwab
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