Popular diets are equally effective for losing weight

BMJ 2005; 330 doi: (Published 14 April 2005) Cite this as: BMJ 2005;330:0-f

Question Which of four popular diets (Atkins, Zone, Weight Watchers, and Ornish) is most effective for losing weight and reducing cardiac risk factors?

Synopsis Every week it seems as if somebody publishes another diet book that claims to be the best method for losing weight and keeping it off. In fact, there are very little data addressing the health effects of popular diets and even less data that directly compare different diets. The investigators enrolled 160 overweight or obese adults (mean body mass index 35; range 27-42), aged 22 to 72, with known hypertension, …

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