David L. Katz, MD, MPH, FACPM, FACP, FACLM earned his BA degree from Dartmouth College (1984); his MD from the Albert Einstein College of Medicine (1988); and his MPH from the Yale University School of Public Health (1993).  He completed sequential residency training in Internal Medicine (1991), and Preventive Medicine/Public Health (1993), earning Board certification in both disciplines.

He is the founding director (1998-2019) of Yale University’s Yale-Griffin Prevention Research Center, Past-President of the American College of Lifestyle Medicine, and Founder/President of the True Health Initiative, a non-profit organization established to defend and disseminate the science, sense, and global expert consensus about healthy, sustainable diet and lifestyle in the service of adding years to lives and life to years around the globe.

Katz directed the development of the Overall Nutritional Quality Index® used in the NuVal® nutritional guidance system, the world’s most robustly validated nutrient profiling system.  He is the Founder (2016) and CEO of his own start-up company (Diet ID, Inc.), developing a disruptive innovation for dietary intake assessment, and diet coaching- using a method known as Diet Quality Photo Navigation (DQPN®).

The recipient of many awards for his contributions to public health, he has received three honorary doctorate degrees.  Dr. Katz has held faculty positions at the Yale University Schools of Medicine, Public Health, and Nursing- and as adjunct professor at the George Washington University School of Medicine. He served as Director of Medical Studies in Public Health at the Yale School of Medicine for nearly a decade.

He holds multiple U.S. patents with other patents pending. He has published over 200 scientific articles and textbook chapters, and 18 books to date, including multiple editions of leading textbooks in both Preventive Medicine and nutrition.  His 17th book, The Truth about Food, sends all proceeds to support the True Health Initiative.  His 18th book, How to Eat (Houghton Mifflin Harcourt), with co-author Mark Bittman, is available now.

Dr. Katz invented the meta-research method known as “evidence mapping;” the behavior modification construct called “impediment profiling;” a multi-site clinical trial approach to community-based participatory research called the multi-site translational community trial (MTCT); and most recently, “evidence threshold pathway mapping,” a method for applying diverse evidence sources in particular to questions about lifestyle practices and lifelong health effects.

Prominent as a journalist and commentator addressing matters of health and medicine, Dr. Katz has been quoted in most major magazines and newspapers, and has appeared widely on radio and television- and served as a regular on-air medical contributor for Good Morning America/ABC News for over two years.  He has delivered addresses at major universities and conferences in all 50 United States and countries around the world on six continents.

Widely recognized for his abilities as an orator, Dr. Katz has been hailed by peers as “the poet laureate of health promotion.” He has served as one of the expert judges for the annual rankings of diets by US News & World Report for much of the past decade.  Katz was a 2019 finalist for a James Beard Foundation Award in the category of health journalism for two pieces in New York Magazine co-authored with Mark Bittman.

Recognized globally for expertise in nutrition, health promotion, and the prevention of chronic disease, he reaches a social media following of nearly one million.

He and his wife, Catherine, founder of Cuisinicity.com, live in Connecticut.  They have 5 grown children, 3 dogs, and one horse.