David L. Katz, MD, MPH, FACPM, FACP, FACLM is the founding director of Yale University's Yale-Griffin Prevention Research Center, Immediate Past-President of the American College of Lifestyle Medicine, and Founder/President of the True Health Initiative. Katz earned his BA degree from Dartmouth College; his MD from the Albert Einstein College of Medicine; and his MPH from the Yale University School of Public Health. The recipient of many awards for his contributions to public health, he has received three honorary doctorate degrees. Katz was named one of the nation's top nutrition experts for 2017-2018 by DietSpotlight.com. He holds five US patents, with others pending. He invented the research method known as "evidence mapping;" is the principal inventor of the Overall Nutritional Quality Index (ONQI) algorithm; and invented the dietary intake assessment method called Diet Quality Photo Navigation. He has authored roughly 200 peer-reviewed publications and many hundreds of health columns both on-line and in print. Katz is recognized globally for expertise in nutrition, weight management and the prevention of chronic disease.