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Ronald E. Kleinman, MD, is Physician in Chief of the Massachusetts General Hospital for Children, Chair of the Department of Pediatrics at Massachusetts General Hospital, and the Charles Wilder Professor of Pediatrics at Harvard Medical School.

Dr. Kleinman’s major areas of research interest include gastrointestinal immunology, nutrition support of infants and children, and nutrition and public health policy. Dr. Kleinman’s professional affiliations include the American Gastroenterological Association, American Association for the Study of Liver Disease (AASLD), North American Society for Pediatric Gastroenterology, Hepatology and Nutrition (NASPGHAN), and American Pediatric Society/Society for Pediatric Research. He is the author of more than 150 peer-reviewed publications, chapters, monographs and 4 textbooks. Dr. Kleinman was a founder and past president of the International Society of Behavioral Nutrition and Physical Activity. He has been a member of the Medical Advisory Group on Diet and Nutrition Guidelines in Cancer for the American Cancer Society, the National Cholesterol Advisory Committee of the National Institute of Child Health and Human Development, a member of the Institute of Medicine committees on Standards for School Meals and Obesity Prevention for young Children, member of the Board of Directors for the David Ortiz Childrens’ Fund, the Global Child Nutrition Foundation, the ILSI Research Foundation, the U.S. Fund for UNICEF New England Regional Board, the Massachusetts General Hospital Physician Organization and Chair of the Board for Project Bread. He was the Chair of the NIH/NICHD Workshop Planning Committee for the Dietary Guidelines: Birth to 24 Months. Dr. Kleinman is a member of the External Advisory Board (EAB) for the Obesity Research Center at Harvard Medical School. Dr. Kleinman served as Chair of the Committee on Nutrition for the American Academy of Pediatrics and is the author of the fourth, fifth, sixth and seventh editions of the Academy’s textbook, Pediatric Nutrition, and served as the Editor-in-Chief for Current Pediatrics Reports.