Mark Hyman

Mark Hyman is an American physician and author who serves as the founder and medical director of The UltraWellness Center and is a senior advisor at the Cleveland Clinic Center for Functional Medicine. He is the co-founder and chief medical officer of Function Health, a membership-based diagnostic health platform that offers direct-to-consumer lab testing. He is best known as a prominent advocate of functional medicine and the pegan diet, and is a fifteen-time New York Times bestselling author.