This is How Low-Carb Diets Promote Weight Loss
Low-carb diets are undeniably effective for losing weight, although the mechanism behind it is hotly debated. They have been shown to produce results equal to or better than low-fat diets in studies lasting anywhere from 6 weeks to 2 years.
In fact, a detailed analysis of 17 randomized controlled studies found that overall, low-carb diets led to greater weight loss and reduction in heart disease risk factors, when compared to low-fat diets.
Low-carb diets appear to be particularly beneficial for people with metabolic syndrome, who carry excess weight around the middle and are at an increased risk of diabetes.
In a 12-week study of men with metabolic syndrome, the low-carb group lost nearly twice as much weight as the low-fat group. They also had a 20% average decrease in abdominal fat, compared to 12% in the low-fat group.
In many studies, the low-carb groups were allowed to eat unlimited protein and fat. One of the reasons low-carb diets work so well is that they tend to reduce appetite. This results in a spontaneous decrease in calorie intake.
Finally, many controlled studies have shown that low-carb diets are very effective for weight loss. They also reduce many risk factors for heart disease.