Dr. Walter Willett is a physician and epidemiologist well known for his work in creating the Harvard Healthy Eating Plate. He is professor of epidemiology and nutrition at the Harvard T.H. Chan School of Public Health and has served as chair of the department of nutrition at Harvard for 25 years. He is a member of the National Academy of Medicine and the recipient of many national and international awards for his research on the long-term consequences of food choices. Dr. Willett is the most cited nutritional scientist internationally and has published over 2,000 research papers, primarily on lifestyle risk factors for heart disease and cancer.