Low Fat or Low Carb?

Nature News:

An analysis of 53 weight-loss studies that included more than 68,000 people has concluded that low-fat diets are no more effective than higher-fat diets for long-term weight loss.

And overall, neither type of diet works particularly well. A year after their diets started, participants in the 53 studies were, on average, only about 5 kilograms (11 pounds) lighter.

“That’s not that impressive,” says Kevin Hall, a physiologist at the US National Institute of Diabetes and Digestive and Kidney Diseases in Bethesda, Maryland. “All of these prescriptions for dieting seem to be relatively ineffective in the long term.”