HealthKart Green Coffee Bean extract is a natural herbal formulation that helps manage weight naturally. Multiple research studies have highlighted the positive effect of chlorogenic acid, the key constituent in green coffee on metabolism and weight loss. It has been clinically proven that chlorogenic acid inhibits release of glucose into the blood stream. It interferes with the absorption of starch, improves metabolism by increasing the rate at which your body burns fat and restricts craving for junk foods.