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The Peter Attia Drive

The Peter Attia Drive

#411 ‒ AMA #90: Strong convictions, loosely held: how Peter's views on fasting, keto, metformin, rapamycin, whole-body MRI, and exercise have changed

Oct 12, 2026 · 18m

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View the Show Notes Page for This Episode Become a Member to Receive Exclusive Content Sign Up to Receive Peter's Weekly Newsletter In this "Ask Me Anything" (AMA) episode, Peter looks back on 400 episodes of The Drive with another installment of "strong convictions, loosely held," revisiting some of the positions he has taken over more than eight years of the podcast. He explains why changing one's mind in response to new evidence, conversations with experts, and clinical experience is essential for practicing medicine well. Peter begins with nutrition, describing how his views on ketogenic diets, extended fasting, and the framework of dietary restriction, time restriction, and calorie…