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The Switch

Ignite Your Metabolism with Intermittent Fasting, Protein Cycling, and Keto

Foreword by George M. Church / With Kristin Loberg



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About The Book

How can you lose dramatic weight, ease chronic conditions, and stay healthier longer? Flip the switch on your metabolism with intermittent fasting, protein cycling, and keto!

Within each of us is an ancient mechanism that eliminates toxic materials, initiates fat burning, and protects cells from becoming dysfunctional—or turning cancerous. It’s called autophagy, and when it’s turned on, the complex operation not only can slow down the aging process, it can optimize biological function as a whole, helping to stave off all manner of diseases and affording us the healthy life spans we never thought possible. It’s the body’s ultimate switch to life.

So how can we positively activate this switch? How frequently should we fast and for how long? Which foods dial up autophagy or, conversely, turn it down? How much exercise and what types are recommended? What’s the sweet spot between intermittent fasting, protein cycling, and ketogenic eating?

Backed by a wealth of scientific data and featuring a gallery of guidelines to follow for lasting results, The Switch decodes the science of autophagy and teaches you how to control it and maximize its profound impact.

About The Author

Photograph by David Steele

James W. Clement is a lawyer and entrepreneur turned research scientist who has devoted the past two decades to understanding the science of life extension. He is best known for his Supercentenarian Research Study, which he started in 2010 with Professor George M. Church of Harvard Medical School. Through worldwide collaborations and in his own laboratory in Gainesville, Florida, he focuses on advancing cutting-edge biomedical discoveries so that humanity can take advantage of these antiaging breakthroughs. Visit him at or follow him on Twitter @JamesWClement.

Product Details

  • Publisher: Gallery Books (December 31, 2019)
  • Length: 320 pages
  • ISBN13: 9781982115395

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Raves and Reviews

"I was blown away by this book. Through many years of research and an immersion in cutting-edge research, James Clement has produced the best book I’ve read on fasting and autophagy. Definitely worth the read!"
David A. Sinclair, PhD, New York Times bestselling author of Lifespan

"The Switch will undoubtedly rewrite your health destiny."
David Perlmutter, MD, #1 New York Times bestsellinga uthor of Grain Brain and Brain Wash

"James Clement is a rare trailblazer in scientific circles. The Switch offers a paradigm shift in the way we think about health—and how to avoid decline and illness. This is a must read."
Mark Hyman, #1 New York Times bestselling author of Food: What the Heck Should I Cook?

"There is an easy way to make your cells stronger and younger. James Clement has done the science to crack the code for all of us to stay younger longer. Read this book!"
Dave Asprey, founder of Bulletproof and New York Times bestselling author of The Bulletproof Diet

"The Switch is a sweeping and fascinating journey on the science of aging and life-extension. Additionally, Clement offers years of distilled research with a practical guide to switch on the body’s innate ability to rejuvenate itself to live a longer and healthier life."
Travis Christofferson, author of Tripping Over the Truth and Curable

"The Switch is a breakthrough twenty-first-century antiaging book!"
Durk Pearson, Scientist and Coauthor of the #1 national bestseller Life Extension

"A must-read for anybody interested in promoting lifespan and health span."
—Dr. Steve Horvath, Professor of Human Genetics & Biostatistics at UCLA

The Switch is a very balanced book, with plenty of nuanced suggestions for how you can make your food situation just a little bit better without making too many radical changes.”Mashable

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