Barbara Jean Rolls
Professor and Helen A. Guthrie Chair of Nutritional Sciences; Professor of Biobehavioral Health
Publication TagsPortion Size Vegetables Food Energy Intake Meals Preschool Children Weights And Measures Snacks Weight Loss Eating Obesity Maintenance United Kingdom Fruit Beverages Surveys And Questionnaires Body Weight Lunch Energy Therapeutics Research Spices Meals (Menu) Young Adult Social Media
Most Recent Papers
Using Herbs and Spices to Increase Vegetable Intake Among Rural Adolescents
Juliana R. Fritts, Maria A. Bermudez, Rebecca L. Hargrove, Laurie Alla, Clara Fort, Qihan Liang, Terri L. Cravener, Barbara Jean Rolls, Christopher R. D'Adamo, John E. Hayes, Kathleen Loralee Keller, 2019, Journal of Nutrition Education and Behavior on p. 806-816.e1
Both increases and decreases in energy density lead to sustained changes in preschool children's energy intake over 5 days
Alissa D. Smethers, Liane Stevens Roe, Christine E. Sanchez, Faris M. Zuraikat, Kathleen Loralee Keller, Barbara Jean Rolls, 2019, Physiology and Behavior on p. 210-218
Colour as a cue to eat: Effects of plate colour on snack intake in pre-school children
Sharon Carstairs, Samantha Caton, Marion Hetherington, Barbara Rolls, Joanne Cecil, 2019, Food Quality and Preferences
Can reduced intake associated with downsizing a high energy dense meal item be offset by increased vegetable variety in 3-5 year old children?
Sharon Carstairs, Samantha Caton, Pam Blundell-Birtill, Barbara Rolls, Marion Hetherington, Joanne Cecil, 2019, Nutrients on p. 1879
Potential moderators of the portion size effect
Faris Zuraikat, Alissa Smethers, Barbara Rolls, 2019, Physiology & Behavior on p. 191-198
The effectiveness of a social media intervention for reducing portion sizes in young adults and adolescents
Maxine A. Sharps, Marion M. Hetherington, Pam Blundell-Birtill, Barbara J. Rolls, Charlotte E.L. Evans, 2019, Digital Health
Portion size has sustained effects over 5 days in preschool children
Alissa D. Smethers, Liane S. Roe, Christine E. Sanchez, Faris M. Zuraikat, Kathleen L. Keller, Samantha M.R. Kling, Barbara J. Rolls, 2019, American Journal of Clinical Nutrition on p. 1361-1372
Can reduced intake associated with downsizing a high energy dense meal item be offset by increased vegetable variety in 3–5-year-old children?
Sharon A. Carstairs, Samantha J. Caton, Pam Blundell-Birtill, Barbara J. Rolls, Marion M. Hetherington, Joanne E. Cecil, 2018, Nutrients
The feasibility and acceptability of two methods of snack portion control in United Kingdom (UK) preschool children
Sophie Reale, Colette M. Kearney, Marion M. Hetherington, Fiona Croden, Joanne E. Cecil, Sharon A. Carstairs, Barbara Jean Rolls, Samantha J. Caton, 2018, Nutrients
Doggy bags and downsizing
Faris M. Zuraikat, Liane S. Roe, Alissa D. Smethers, Barbara J. Rolls, 2018, Appetite on p. 162-170
Myths, presumptions, and facts about obesity
Krista Casazza, Kevin R. Fontaine, Arne Astrup, Leann L. Birch, Andrew W. Brown, Michelle M. Bohan Brown, Nefertiti Durant, Gareth Dutton, E. Michael Foster, Steven B. Heymsfield, Kerry McIver, Tapan Mehta, Nir Menachemi, P. K. Newby, Russell Pate, Barbara Jean Rolls, Bisakha Sen, Daniel L. Smith, Diana M. Thomas, David B. Allison, 2013, New England Journal of Medicine on p. 446-454
NIH working group report
Paul S. MacLean, Rena R. Wing, Terry Davidson, Leonard Epstein, Bret Goodpaster, Kevin D. Hall, Barry E. Levin, Michael G. Perri, Barbara J. Rolls, Michael Rosenbaum, Alexander J. Rothman, Donna Ryan, 2015, Obesity on p. 7-15
Dietary energy density is associated with body weight status and vegetable intake in U.S. children
Jacqueline A. Vernarelli, Diane C. Mitchell, Terryl J. Hartman, Barbara J. Rolls, 2011, Journal of Nutrition on p. 2204-2210
Eating vegetables first
Maureen K. Spill, Leann L. Birch, Liane S. Roe, Barbara J. Rolls, 2010, American Journal of Clinical Nutrition on p. 1237-1243
Effects of doubling the portion size of fruit and vegetable side dishes on children's intake at a meal
T. V E Kral, April C. Kabay, Liane Stevens Roe, Barbara Jean Rolls, 2010, Obesity on p. 521-527
Plenary Lecture 1
Barbara J. Rolls, 2010, Proceedings of the Nutrition Society on p. 70-79
What is the role of portion control in weight management
B. J. Rolls, 2014, International Journal of Obesity on p. S1-S8
Practices associated with weight loss versus weight-loss maintenance
Christopher N. Sciamanna, Michaela Kiernan, Barbara J. Rolls, Jarol Boan, Heather Stuckey, Donna Kephart, Carla K. Miller, Gordon Jensen, Terry J. Hartmann, Eric Loken, Kevin O. Hwang, Ronald J. Williams, Melissa A. Clark, Jane R. Schubart, Arthur M. Nezu, Erik Lehman, Cheryl Dellasega, 2011, American Journal of Preventive Medicine on p. 159-166
Portion size can be used strategically to increase vegetable consumption in adults
Barbara Jean Rolls, Liane Stevens Roe, Jennifer S. Meengs, 2010, American Journal of Clinical Nutrition on p. 913-922
An intervention study targeting energy and nutrient intake in worksite cafeterias
Michael R. Lowe, Karyn A. Tappe, Meghan L. Butryn, Rachel A. Annunziato, Maria C. Coletta, Christopher N. Ochner, Barbara J. Rolls, 2010, Eating Behaviors on p. 144-151
News Articles Featuring Barbara Jean Rolls
Jun 27, 2020
Obesity: America’s number one export?
Food research by the U.S. military, particularly World War II, led to the creation of processed wartime rations. After the Allied victory, the world largely adopted America's processed-food diet, a key factor for the global obesity crisis.
Jan 17, 2020
Penn State Professor’s Diet Plan Ranked Second-Best For Weight Loss
Penn State students who have a New Year’s Resolution involving eating healthier can follow an award-winning diet plan that was developed at Penn State.
Jan 07, 2020
You can be full and have room for dessert
Those with a sweet tooth will be well versed in feeling full but having space for pudding. Good news for many, an expert claims “dessert stomach” is not only real, but part of our evolution.
Jan 04, 2020
Weight loss diet developed at Penn State ranked second-best for 2020
A weight loss diet created by a nutritionist at Penn State University has been ranked one of the best to follow in 2020 for those looking to shed pounds.
Jan 02, 2020
Weight-loss plan developed at Penn State ties for No. 2 ranking
If eating healthier is on your list of New Year’s resolutions, you may need to look no further than Volumetrics, a diet developed by Penn State Professor of Nutrition Barbara Rolls that has tied for the No. 2 weight-loss plan in this year’s U.S. News & World Report's "Best Diets."