Barbara Jean Rolls
Professor and Helen A. Guthrie Chair of Nutritional Sciences; Professor of Biobehavioral Health
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0226 Henderson Bldg
University Park, PA 16802 - bjr4@psu.edu
- 814-863-8572
Links
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Food Weights And Measures Obesity Weight Loss Portion Size Preschool Children Energy Intake Meals Research Child Energy Maintenance Diet Body Weight Vegetables Lunch Eating Milk Behavioral Sciences Chronic Disease Weighing Obesity Management Preschool Child Biomarkers IngestionMost Recent Publications
Switching between foods is reliably associated with intake across eating events in children
N. V. Neuwald, Alaina Pearce, P. M. Cunningham, L. Koczwara, M. N. Setzenfand, B. J. Rolls, Kathleen Loralee Keller, 2024, Appetite
Child eating behaviors are consistently linked to intake across meals that vary in portion size
Alaina Pearce, N. V. Neuwald, J. S. Evans, O. Romano, B. J. Rolls, Kathleen Loralee Keller, 2024, Appetite
The Cerebellar Response to Visual Portion Size Cues Is Associated with the Portion Size Effect in Children
Bari A. Fuchs, Alaina L. Pearce, Barbara J. Rolls, Stephen J. Wilson, Emma Jane Rose, Charles Geier, Hugh Garavan, Kathleen L. Keller, 2024, Nutrients
Fibre-rich Foods to Treat Obesity and Prevent Colon Cancer trial study protocol: a randomised clinical trial of fibre-rich legumes targeting the gut microbiome, metabolome and gut transit time of overweight and obese patients with a history of noncancerous adenomatous polyps
Terryl J. Hartman, Jennifer Christie, Annette Wilson, Thomas R. Ziegler, Barbara Methe, William Dana Flanders, Barbara J. Rolls, Blaine Loye Eberhart, Jia V. Li, Helaina Huneault, Ben Cousineau, Miriam R. Perez, Stephen J.D. O'Keefe, 2024, BMJ Open
Does ‘portion size’ matter? Brain responses to food and non-food cues presented in varying amounts
Bari Fuchs, Alaina L. Pearce, Barbara J. Rolls, Stephen Wilson, E Rose, C Geier, Kathleen Keller, 2024, Appetite on p. 107289
Poorer inhibitory control was related to greater food intake across meals varying in portion size: A randomized crossover trial
Paige Cunningham, Liane S. Roe, Alaina Pearce, Kathleen Keller, Barbara Rolls, 2023, Appetite on p. 107-168
Reasons for meal termination, eating frequency, and typical meal context differ between persons with and without a spinal cord injury
Gary Farkas, Paige Cunningham, Alicia Sneij, John Hayes, Mark Nash, Arthur Berg, David Gater, Barbara Rolls, 2023, Appetite
Portion size affects food selection in an immersive virtual reality buffet and is related to measured intake in laboratory meals varying in portion size
John W. Long, Sara J. Pritschet, Kathleen Loralee Keller, Charissa S.L. Cheah, Lee Boot, Alexander Klippel, Timothy R. Brick, Caitlyn G. Edwards, Barbara Jean Rolls, Travis D. Masterson, 2023, Appetite
Variety and portion size combine to increase food intake at single-course and multi-course meals
Paige M. Cunningham, Liane S. Roe, Kathleen Loralee Keller, Barbara Rolls, 2023, Appetite
Switching between foods: A potential behavioral phenotype of hedonic hunger and increased obesity risk in children
Nicholas Neuwald, Alaina Pearce, Shana Adise, Barbara J. Rolls, Kathleen Loralee Keller, 2023, Physiology and Behavior on p. 114312
Most-Cited Papers
NIH working group report: Innovative research to improve maintenance of weight loss
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 Management of Obesity: Cornerstones of Healthy Eating Patterns
Alissa D. Smethers, Barbara J. Rolls, 2018, Medical Clinics of North America on p. 107-124
Weighing the Evidence of Common Beliefs in Obesity Research
Krista Casazza, Andrew Brown, Arne Astrup, Fredrik Bertz, Charles Baum, Michelle Bohan Brown, John Dawson, Nefertiti Durant, Gareth Dutton, David A. Fields, Kevin R. Fontaine, Steven Heymsfield, David Levitsky, Tapan Mehta, Nir Menachemi, P. K. Newby, Russell Pate, Hollie Raynor, Barbara J. Rolls, Bisakha Sen, Daniel L. Smith, Diana Thomas, Brian Wansink, David B. Allison, 2015, Critical Reviews in Food Science and Nutrition on p. 2014-2053
What is the role of portion control in weight management
B. J. Rolls, 2014, International Journal of Obesity on p. S1-S8
Dietary energy density: Applying behavioural science to weight management
B. J. Rolls, 2017, Nutrition Bulletin on p. 246-253
Double trouble: Portion size and energy density combine to increase preschool children's lunch intake
Samantha M.R. Kling, Liane S. Roe, Kathleen L. Keller, Barbara J. Rolls, 2016, Physiology and Behavior on p. 18-26
Dietary energy density is associated with obesity and other biomarkers of chronic disease in US adults
Jacqueline A. Vernarelli, Diane C. Mitchell, Barbara J. Rolls, Terryl J. Hartman, 2014, Zeitschrift fur Ernahrungswissenschaft on p. 59-65
Portion size has sustained effects over 5 days in preschool children: A randomized trial
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
What is eaten when all of the foods at a meal are served in large portions?
Liane S. Roe, Samantha M.R. Kling, Barbara J. Rolls, 2016, Appetite on p. 1-9
Dietary energy density and obesity: how consumption patterns differ by body weight status
Jacqueline A. Vernarelli, Diane C. Mitchell, Barbara J. Rolls, Terryl J. Hartman, 2018, Zeitschrift fur Ernahrungswissenschaft on p. 351-361
News Articles Featuring Barbara Jean Rolls
Aug 07, 2023
Why do we always have room for dessert?
Adding variety to your diet may cause you to eat more than you need to
Full Article
Jan 12, 2023
Best Weight-Loss Diets of 2022, Ranked
Winter is a pivotal season. It’s often a turning point for those who’ve been dragging their feet about making healthier choices, like moving more and eating healthier. That’s why, each year, U.S. News & World Report evaluates the most popular diets, and ranks them by category.
Full Article
Jan 06, 2023
Penn State professor’s diet named in the top 10 for overall best weight lost
Each year, the Volumetrics plan has consistently been recommended when people have looked to U.S. News & World Report rankings for advice on diets to improve their health or manage their weight.
Full Article
Jan 03, 2023
Volumetrics again ranked as one of the nation’s best diets
Each year, the Volumetrics plan has consistently been recommended when people have looked to U.S. News & World Report rankings for advice on diets to improve their health or manage their weight.
Full Article
Jan 05, 2022
WTAJ News at 6
This local TV news segment features Barbara Rolls, professor and Helen A. Guthrie Chair of Nutritional Sciences.
Full Article
Nov 26, 2021
Why You Always Have Room for Pie
One of the more curious phenomena of the Thanksgiving meal is how we can feel completely full, yet somehow always find room for dessert.
Full Article
Feb 17, 2021
Volumetrics Diet: lose weight by eating more
Food. We need it to survive. We consume it every day. Yet, sometimes food has the power to consume us.
Full Article
Oct 13, 2020
Tips To Be Fit: How important is water to trying to lose weight?
We have all heard that to curve your appetite just drink water to make your stomach feel full and you won’t eat as much. “Water doesn’t help you eat less,” says Barbara Rolls, a nutritionist at Penn State University. The body has different satiety points for food and water, and one doesn’t translate to the other. But eating foods high in water content could satisfy appetite and curb calorie consumption.
Full Article
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.
Full Article
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.
Full Article