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Barbara Rolls
PhD*

Dr. Rolls is Professor and Helen A. Guthrie Chair of Nutritional Sciences at The Pennsylvania State University. She also holds positions at Penn State as Professor in the Department of Biobehavioral Health, and she is a faculty member in the College of Medicine’s Neural and Behavioral Sciences Program.

Dr. Rolls’ research focuses on satiety and obesity. Her studies that received a MERIT award from the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) have demonstrated how characteristics of foods such as variety, energy density, and portion size can influence energy intake across the lifespan.

She is the author of over 250 scientific articles and six books, including Thirst, The Volumetrics Weight-Control Plan: Feel Full on Fewer Calories, 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, and has served on the Advisory Council of NIDDK. In 2006 she was elected a fellow of the American Association of the Advancement of Science.

Her awards and honors include Academy of Nutrition and Dietetics Honorary Member, American Association for the Advancement of Science Fellow, International Award for Modern Nutrition, Atwater Lecturer, American Society for Nutrition (ASN) Award in Human Nutrition, The Obesity Society’s Bray Founders Award, ASN Fellows Class of 2011, ASN David Kritchevsky Career Achievement Award, and the Society for the Study of Ingestive Behavior Hoebel Award for Creativity.

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