Dr. Katz is recognized by The Consumers' Research Council of America as one of America's leading physicians in preventive medicine. He is an internist that specializes in preventive medicine, and is the director of the Prevention Research Center at Yale University School of Medicine. Dr. Katz is a nationally renowned authority on nutrition and weight control. His research interests focus on prevention of chronic diseases - specifically cardiovascular disease, obesity, diabetes and cancer.

Dr. Katz is a medical contributor to ABC News . On January 8th, 2006, Dr. Katz provided national exclusive reporting on organic food guidance for Good Morning America He is a supporter of natural and organic products.

To read more about Dr. Katz, visit www.davidkatzmd.com.