Jorge ChavarroJorge Chavarro, M.D., Sc.D., earned both master's and doctoral degrees in epidemiology and nutrition at the Harvard School of Public Health, where he is currently a research fellow studying the role of diet and lifestyle on reproductive functin. Walter C. Willett, M.D., Dr.P.H., is the Fredrick John Stare Professor of Epidemiology and Nutrition and chairman of the department of nutrition at the Harvard School of Public Health, as well as a professor of medicine at Harvard Medical School. He is one of the leaders of the influential Nurses' Health Study, as well as the author of Eat, Drink, and Be Healthy: The Harvard Medical School Guide to Healthy Eating. Patrick J. Skerrett is coauthor, with Walter Willett, of Eat, Drink, and Be Healthy. He is the editor of the Harvard Heart Letter. Read More Read Less