Barbara J. Rolls

Dr. Barbara Rolls is a veteran nutrition scientist and author of the nationally acclaimed books, The Volumetrics Weight Control Plan (HarperCollins, 2000), and The Volumetrics Eating Plan (Harper, 2007), both New York Times bestsellers. “Volumetrics” was rated the #1 Diet Plan by Consumer Reports in 2007, and The Most Effective Diet by The Daily Beast for three consecutive years (2010-2012). Dr. Rolls is the endowed Guthrie Chair in Nutritional Sciences at The Pennsylvania State University where she heads the Laboratory for the Study of Human Ingestive Behavior, described by U.S. News & World Report as a “quirky culinary empire.” Here she and her staff “cook up” novel studies to help understand what influences peoples’ food intake and food choices as well as their body weight. Dr. Rolls has published over 250 research articles in top tier scientific journals. The “feeling full on fewer calories” principles of her “Volumetrics” books have been featured in a wide variety of health, fitness, and family magazines and web sites. Dr. Rolls frequently appears on television and has been a guest on the Today Show, 20/20, and CNN, as well as CBS, ABC, and Fox Evening News. Learn more about Dr. Rolls and her research at “The Ultimate Volumetrics Diet” on Facebook.