White Kidney Bean Extract (Phase 2) is a powerful carbohydrate blocker. It works by stopping the digestion of starches in your body. When you eat starches, this blocker prevents them from being fully digested. Instead, they either pass through your system without being absorbed, or they're used by gut bacteria for fermentation. Taking 3 capsules per day can block up to 700 calories per day! The Starch blocker can also reduce belly fat, control blood sugar, boost weight loss, and control appetite!