David L. Katz, MD, MPH, FACPM, FACP, FACLM, is the director of Yale University’s Yale-Griffin Prevention Research Center, which he founded in 1998, and current president of the American College of Lifestyle Medicine. He earned his Bachelor of Arts from Dartmouth College in 1984, his medical degree from the Albert Einstein College of Medicine in 1988 and his master’s degree in public health from the Yale University School of Public Health in 1993. He completed sequential residency training in internal medicine and preventive medicine/public health. He is a two-time diplomate of the American Board of Internal Medicine and a board-certified specialist in preventive medicine/public health. He holds two honorary doctorates. Dr. Katz has published roughly 200 scientific articles and textbook chapters and 15 books, including multiple editions of leading textbooks in both preventive medicine and nutrition. Recognized globally for expertise in nutrition, weight management and the prevention of chronic disease, he has a social media following of well over half a million. In 2015, Dr. Katz established the True Health Initiative to help convert what we know about lifestyle as medicine into what we do about it, in the service of adding years to lives and life to years around the globe.