Barbara J. Rolls, Ph.D., is a graduate of the University of Pennsylvania, and received her Ph.D. in physiology from the University of Cambridge, England. After spending her early research career at the University of Oxford, England, Dr. Rolls joined the faculty of the Johns Hopkins University School of Medicine as Professor of Psychiatry. In 1992, she became a faculty member at The Pennsylvania State University where she is Professor andthe Helen A. Guthrie Chair of Nutritional Sciences.
Dr. Rolls’ research includes characterization of mechanisms that control thirst as well as studies of hunger, satiety, and obesity. Her studies that received a MERIT award from the National Institute of Diabetes and Digestive and Kidney Diseases have demonstrated how characteristics of foods such as variety, energy density, and portion size can influence energy intake across the lifespan.
Her more than 250 research articles have been published in outstanding journals such as The American Journal of Clinical Nutrition, The Journal of Nutrition, The New England Journal of Medicine, Appetite, and Obesity. She has communicated to the public through the media and her six books including Thirst, The Volumetrics Weight-Control Plan, The Volumetrics Eating Plan, and The Ultimate Volumetrics Diet.
Dr. Rolls has served as President of both the Society for the Study of Ingestive Behavior and The Obesity Society. She has also served on the Advisory Council of NIDDK and on the National Task Force on the Prevention and Treatment of Obesity.
Her awards include: Honorary Member of the Academy of Nutrition and Dietetics, Fellow of the American Association for the Advancement of Science, International Award for Modern Nutrition, Atwater Lecturer, ASN Centrum Award in Human Nutrition, The Obesity Society’s George A. Bray Founders Award, ASN’s Fellows Class of 2011, and the 2013 David Kritchevsky Career Achievement Award.