Dr. Will Cole is a leading functional-medicine expert who consults people around the world via webcam at www.drwillcole.com and locally in Pittsburgh, Pennsylvania. He specializes in clinically investigating the underlying factors in chronic disease and then customizing health programs. Dr. Cole was named one of the top 50 functional-medicine and integrative doctors in the nation. His previous book is the international bestseller Ketotarian: The (Mostly) Plant-Based Plan to Burn Fat, Boost Your Energy, Crush Your Cravings, and Calm Inflammation.