Effects of Peanut Products on Satiety and Weight Management in an Overweight Campus Community

Project: Research project

Project Details

Description

Effects of Peanut Products on Satiety and Weight Management in an Overweight Campus Community Effects of Peanut Products on Satiety and Weight Management in an Overweight Campus Community America is experiencing a major epidemic of overweight and obesity which is increasing risk for cardiovascular disease, cancer, stroke, and type 2 diabetes. Although much time and effort has been directed at developing weight loss diets or exercise programs that promote long-term weight loss, these attempts have been largely unsuccessful, mainly because individuals are not willing to make (and sustain) major lifestyle changes. A simple, unintimidating diet strategy to help individuals improve their eating patterns and control hunger may be a useful approach to weight management, and one that will help promote lifestyle change. Survey data show that Americans who consume 5 or more servings per week of peanuts or tree nuts are thinner than those who consume these foods less often. This may seem counterintuitive given the high calorie content of nuts. In recent randomized controlled trials, participants asked to incorporate 2-3 servings of peanuts or tree nuts into their diets daily (340-500 kcals) compensated for a majority of these calories by displacement of other food items in the diet, and did not gain weight. Hence, the high satiety value of peanuts and tree nuts effectively regulated daily calorie intake. Yet, these trials do not explain the survey data that related body thinness to peanut/nut consumption. In these surveys, the quantity of peanuts/nuts consumed by individuals was much less than that used in the experimental trials, 5 servings per week, or 0.7 servings per day. Thus, it is possible that smaller amounts of peanuts/nuts daily (approximately 180 kcals) would have a satiating effect and provide less calories which would combine to promote modest weight loss over time. Also, it should be noted that this level of peanut/nut ingestion (5 servings/week) has been related to reduced risk for cardiovascular disease due to reductions in oxidized LDL cholesterol while preserving HDL cholesterol.This study will determine: (1) the short-term effect of peanut consumption on postprandial glycemia and satiety, and (2) the long-term effect of daily peanut consumption (1 oz or 170 kcals) about 1 hour before the dinner meal on body weight in overweight adults. For both trials, a snack bar will be the control treatment, and participants will be told that the trial will examine the impact of healthy snacks on diet behaviors. Physical activity patterns will not be modified.
StatusFinished
Effective start/end date12/1/1011/30/11

Funding

  • National Peanut Board: $100,000.00

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