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Calorie density, not fat content, affects intake
Wednesday, March 31, 2004 11:17 am Email this article
The calorie density of foods, rather than the fat content, affects how much a person eats according to a recent study.
Both lean and obese women ate 16 percent fewer calories when they were given low-calorie-dense, low-fat foods compared to when they were given high-calorie dense, low-fat foods.
Both diets contained sixteen percent fat. However, fat content of the diet did not affect intake.
The women consumed the same number of calories when they high-calorie-dense, high-fat foods containing 36 percent fat were substituted for high-calorie-dense, low-fat foods containing 16 percent fat.
All meals had the same palatability.
The low-density foods contained 31 calories per ounce, while the high-density foods contained 45 calories per ounce.
The protein content was held at 16 percent across all diets.
The study involved seventeen lean women with an average body mass index of 23 and seventeen obese women with an average body mass index of 34.
Rolls BJ; Bell EA; Castellanos VH; Chow M; Pelkman CL; Thorwart ML. Energy density but not fat content of foods affected energy intake in lean and obese women. American Journal of Clinical Nutrition, 1999 May, 69(5):863-71.
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