William Davis, MD, is a cardiologist and the author of the groundbreaking #1 New York Times bestseller Wheat Belly. He is also the author of three additional New York Times bestsellers—Wheat Belly Cookbook, Wheat Belly 30-Minutes (or Less!) Cookbook, and Wheat Belly Total Health—as well as several other influential books, including Wheat Belly 10-Day Grain Detox and Undoctored.

Dr. David Friedman and Dr. William Davis explore how today’s surge in chronic illness—from obesity to autoimmune disease—may trace back to a hidden culprit: the gut. They argue that modern diets, toxins, and antibiotics have quietly damaged our microbiome, while popular weight-loss trends may do more harm than good. Their message is clear: real, lasting health comes from fixing the body at its roots, not chasing quick fixes.

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