Carb-Buster contains Phase 2 registered: Starch Blocker which is an all-natural, non-stimulant white kidney bean extract that is used as an ingredient in a variety of nutritional supplements. During the digestive process, the body converts carbohydrates into sugar. The body does this by breaking down the carbohydrate molecule with alpha amylase, an enzyme that is produced in the pancreas. The sugar is then used as energy for the body, or stored as fat. Carb-Buster with Phase 2 registered: “neutralizes” the digestive enzyme alpha amylase – may temporarily delay the digestion and absorption of carbohydrates – allowing a portion of them to pass through the system before they can be converted into glucose, and then fat.