David L. Katz, MD, is a nationally renowned authority on nutrition, weight control, and the prevention of chronic disease. He is an associate professor of public health and directs the Yale Prevention Research Center, which he co-founded in 1998. As director of this clinical research laboratory dedicated to chronic disease prevention, Dr. Katz has served as principal investigator for numerous community and clinical trials and has acquired and managed nearly $20 million in research funds.

Dr. Katz has published over 80 scientific articles and chapters; innumerable abstracts, newsletter articles, health columns, essays, poems; and nine books to date. He is also the author of The Way to Eat, and his ninth book, The Flavor Point Diet (Rodale: January, 2006) introduces a groundbreaking strategy for weight control based on the thoughtful distribution of flavors.

Elected to the governing board of the American College of Preventive Medicine in 2002 and elected president of the Association of Teachers of Preventive Medicine in 2004, Dr. Katz was recognized in 2003–2004, and again in 2004–2005, as one of America's top physicians in preventive medicine by the Consumers' Research Council of America.

In 2005, Dr. Katz became a medical contributor for ABC News, with weekly appearances on Good Morning America and occasional appearances on 20/20, World News Tonight and other programming. Also in 2005, Dr. Katz became a syndicated health/nutrition columnist for The New York Times.

Dr. Katz has been an expert consultant on obesity control to the U.S. Secretary of Health, the FDA Commissioner, several governors, private corporations, and the health insurance industry. He is currently an adviser on weight control policy to the National Governors Association.

Dr. Katz lives in Connecticut with his wife, Catherine, and their five children.