Young kids may not be as good at resisting large portions of foods as was previously thought, according to Penn State researchers who found that preschoolers were susceptible to the portion size effect — the tendency of people to eat more when larger portions are served.
Volumetrics, a diet developed by Penn State’s Barbara Rolls, was ranked the No. 2 weight loss plan in this year’s U.S. News & World Report's Best Diets.
Helen Guthrie, who served for 40 years as a Penn State faculty member, including 14 years as head of the nutrition department, passed away on Feb. 24. She was 92.
High school students may prefer seasoned vegetables more than plain, according to Penn State researchers who hope that this will lead to students liking and eating more veggies, and result in less food waste in school.
Penn State researchers have found that after going through a training program designed to help people control portion sizes, participants still ate larger portions but chose healthier foods, lowering their calorie intake.
The Volumetrics diet plan — developed by Barbara Rolls, professor of nutritional sciences and Helen A. Guthrie Chair in Nutrition at Penn State — ranks as a No. 2 weight loss plan in U.S. News & World Report's Best Diets of 2018.
Celebrating 25 years as a Penn State faculty member in the College of Health and Human Development on Sept. 1, Barbara Rolls, professor and Helen A. Guthrie Chair of Nutritional Sciences, marked the occasion by establishing a new endowment to benefit graduate students.
The Volumetrics diet -- created by Barbara Rolls, professor of nutritional sciences and Helen A. Guthrie Chair in Nutrition at Penn State -- has been ranked No. 2 for weight loss out of 38 diets in U.S. News & World Report's Best Diets of 2017.
Most children overeat significantly when served large portions of calorie-dense popular foods, according to a Penn State study. The results suggest that manipulating calorie content and portion size can substantially reduce children's overall caloric consumption.
Barbara Rolls' Volumetrics received the No. 6 spot for best overall diets by U.S. News and World Report for 2015. The Volumetrics approach focuses on feeling full on fewer calories, and food is divided into four categories based on energy density. Volumetrics has made the U.S. News & World Report’s top 10 diet lists since 2011.
People eat more breakfast cereal, by weight, when flake size is reduced, according to Penn State researchers, who showed that when flakes are reduced by crushing, people pour a smaller volume of cereal into their bowls, but still take a greater amount by weight and calories.
The Volumetrics diet -- created by Barbara Rolls, professor of nutritional sciences and Helen A. Guthrie Chair in Nutrition at Penn State -- has been ranked #6 out of 32 diets in the "Best Diets Overall" category of the U.S. News & World Report's Best Diets 2014.
Two Penn State faculty members: A. Catharine Ross and Barbara Rolls; are the recipients of awards from the American Society for Nutrition. The faculty members will receive their awards in a ceremony during the ASN Scientific Sessions and Annual Meeting at Experimental Biology 2013 on Sunday, April 21, in Boston.
A new book by Barbara Rolls, professor of nutritional sciences and Helen A. Guthrie Chair in Nutrition at Penn State, aims to help people control their hunger while also losing weight. "The Ultimate Volumetrics Diet" will be available in stores and online on April 10. "There is no magic way to get around the fact that to lose weight you must reduce the calories you consume to below the number you burn," Rolls said. "However, cutting calories doesn't have to leave you feeling hungry. You can carefully choose the foods you eat so that you feel full and satisfied on fewer calories."
Preschool children consumed nearly twice as many vegetables and 11 percent fewer calories over the course of a day when researchers from Penn State added pureed vegetables to the children's favorite foods.
"Childhood obesity rates are on the rise, and at the same time children are not eating the recommended amount of vegetables," said Barbara Rolls, professor of nutritional sciences and holder of the Helen A. Guthrie chair in nutritional sciences in Penn State's College of Health and Human Development. "Vegetables have been shown to help lower calorie intake. The problem is getting kids to eat enough vegetables."
