Mark Hyman, MDMark Hyman, MD, was co-medical director of Canyon Ranch for ten years, and is now the chairman of the Institute for Functional Medicine and founder and medical director of The UltraWellness Center. He is the No. 1 New York Times bestselling author ofThe Blood Sugar Solution 10-Day Detox Diet, The Blood Sugar Solution, The Blood Sugar Solution Cookbook, Ultrametabolism, The Ultramind Solution, The Ultrasimple Diet, and coauthor of Ultraprevention. Read More Read Less