The advocates of low-carb diet received a scientific boost recently.
An American trial, published recently in the British Medical Journal, compared the effects of low-carb-high-fat diet with high-carb-low-fat while keeping total calories and protein intake constant.
This elegantly done trial shows that carbohydrates are bad for weight loss. A diet with a combination of low-carb-high-fat content was the winner in this trial and it promoted energy loss and helped maintain weight loss.
Effects of a low carbohydrate diet on energy expenditure during weight loss maintenance: randomized trial.