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Want a Successful Diet? Just Pick One

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Results of the study - called Pounds Lost - published Thursday in the New England Journal of Medicine. Funded by the National Heart, Lung, and Blood Institute of the National Institutes of Health, Bray worked in collaboration with researchers at Harvard University School of Public health and relied upon volunteers who enrolled for a two-year diet, activity and counseling program.

POUNDS LOST, short for Preventing Overweight Using Novel Dietary Strategies, led to similar weight loss among participants assigned to one of four diets that differed in proportions of three major nutrients. The diets were low or high in total fat (20 or 40 percent of calories) with either average or high protein (15 or 25 percent of calories). Carbohydrate content ranged from 35 to 65 percent of calories. The diets all used the same calorie reduction goals and were heart-healthy-low in saturated fat and cholesterol while high in dietary fiber.

On average, participants lost 13 pounds at 6 months and maintained a 9 pound loss at 2 years. Participants also reduced their waistlines by 1 to 3 inches by the end of the study. Craving, fullness, hunger, and diet satisfaction were all similar across the four diets.

"The good news here," said Bray, "is people who need to lose weight can be flexible to choose an approach that they're most likely to sustain-one that is most suited to their personal preferences and health needs."

In addition to the diet, participants received group diet counseling twice a month and individual sessions every eight weeks. Participants were given personalized calorie goals, ranging from 1,200 to 2,400 calories per day, which reduced their overall caloric intake as compared with their daily energy requirement. All participants also undertook moderate-intensity physical activity, such as brisk walking, for at least 90 minutes per week.

Last modified on Thursday, 03 December 2009 14:39
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