Do you know that people in “blue zones”—the places where people live the longest on Earth—eat the most diverse foods? The point isn’t what they eat, but what they don’t. Dr. Gundry’s new book is devoted to paradoxical facts related to true healthy longevity: animal fats shorten our lives, excess iron in the body leads to early aging, and a fast metabolism helps you live brightly but quickly. Hundreds of scientifically proven facts and a real program—by following it you’ll be able to live to deep old age in full health.