Last summer, an article in the July 7 New York Times
Sunday Magazine challenged conventional thinking about weight loss,
questioning the efficacy of low-fat diets and sparking a resurgence of interest
in so-called high-protein or low-carbohydrate diets.
In this issue of JAMA (see page 1837 in the printed journal), a systematic
review of studies published between 1966 and February 2003 on the safety and
efficacy of low-carbohydrate diets finds that there is insufficient evidence
to recommend or advise against the use of such diets, and that weight loss
was associated with length of the diet, prediet weight, and the number of
calories consumed, but not reduced carbohydrate content.
Stephenson J. Low-Carb, Low-Fat Diet Gurus Face Off. JAMA. 2003;289(14):1767-1773. doi:10.1001/jama.289.14.1767