Results

Weight loss

Most people can lose weight if they limit calories and boost their physical activity. To lose 1 to 1.5 pounds (0.5 to 0.7 kilograms) a week, you need to eat 500 to 750 fewer calories each day.

Low-carb diets, especially very low-carb diets, may lead to greater short-term weight loss than do low-fat diets. But most studies have found that at 12 or 24 months, the benefits of a low-carb diet aren't very large.

Cutting calories and carbs may not be the only reason for the weight loss with low-carb diets. Some studies show that you may shed some weight because the extra protein and fat helps you feel full longer. Feeling full longer helps you eat less.

Other benefits

Low-carb diets that focus on healthy sources of carbs, fat and protein may help lower the risk of type 2 diabetes and heart disease. In fact, almost any diet that helps you shed excess weight may improve blood sugar and cholesterol levels, at least in the short term.