Episode 14

What we get wrong about weight and nutrition

Published on: 1st May, 2026

Former NIH researcher Kevin Hall explains the science of why we eat what we eat, and debunks persistent myths about willpower, metabolism, and protein. He shares his startling findings from studying The Biggest Loser contestants—revealing why extreme exercise doesn’t prevent metabolic slowing—and explains how our modern food environment is engineered to override our conscious control. Plus, why MAHA has some good ideas, but isn’t on track to make America much healthier.

Hall is a co-author of Food Intelligence, published by Avery Books.

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About the Podcast

It Turns Out
"It Turns Out" reveals the hidden realities reshaping our world—from how marriage impacts inequality to the way that the tax code has transformed wealth.

Through conversations with experts who challenge conventional wisdom, award-winning journalist Kara Miller focuses each episode on groundbreaking research, changing how listeners see society, economics, technology, and human behavior. “It Turns Out” delves into data that directly impacts your life—whether you know it or not.

You can reach us at info@itturnsoutshow.com

We gratefully acknowledge the support of the Alfred P. Sloan Foundation. This work was done under Grant No. G-2025-79141.

About your host

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Kara Miller

Kara hosted the nationally-syndicated public radio program Innovation Hub, which she launched. The program won the 2021 Clarion Award for best Radio Talk or Interview Program and aired on more than 100 stations, including in New York, Houston, Philadelphia, Chicago and Washington, D.C. It spotlighted compelling thinkers, including Steve Wozniak, Sherry Turkle, Yo-Yo Ma, Walter Isaacson, and Sal Khan.

She writes “The Big Idea” column for The Boston Globe and is a frequent contributor to The Boston Globe Magazine.

Kara has moderated panels and spoken about innovation and entrepreneurship at events hosted by The International Women’s Forum, PBS Digital Media for STEM, Harvard Medical School, Google, and MIT Sloan.

She has taught at Babson College and at the University of Massachusetts.