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Most Studies On Weight-Loss Programs Are Useless – Just Like The Programs

April 23, 2015: 12:00 AM EST
Most commercial weight-loss programs aren’t all they’re cracked up to be, and neither are the studies purportedly proving their effectiveness, according to a U.S. review. The researchers culled just 39 valid clinical trials covering 11 programs – of 32 commercial programs on the market – from 4,200 studies. The worthwhile studies tested Weight Watchers, Jenny Craig, NutriSystem, HMR, Medifast, OPTIFAST, Atkins, SlimFast, the Internet-based Biggest Loser Club, eDiets and Lose It!. “Gold-standard” data on Weight Watchers and Jenny Craig showed that participants, on average, lost more weight after one year than people on self-directed diets, or people who simply read health information or received other forms of education and counseling.
Kimberly A. Gudzune et al., "Efficacy of Commercial Weight-Loss Programs. ", Annals of Internal Medicine, April 23, 2015, © American College of Physicians
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