Summary Box: Low-Carb Diet Best for Cholesterol

WINNING DIETS: Low-carb and Mediterranean-style diets took off more pounds than a low-fat diet in a two-year study.

SURPRISED? Atkins diet naysayers were most surprised to find that low-carb lowered cholesterol more than the other two approaches.

CAVEATS: Experts say the low-fat diet in the experiment allowed more fat than the American Heart Association recommends.