moderate works by simply blocking the enzymes responsible for converting complex carbs (starches, maltose, lactose & sucrose etc..) to simple sugars like glucose & fructose, thereby making them non-absorbable. These carbs and complex sugars just get passed down the intestine and excreted. Various studies have shown that moderate blocks up to 40% calories from carb intake. Using moderate regularly before your meal can induce satiety. The undigested carbs likely stimulate the hunger control response, so the urge to snack more frequently will wane off. Due to less calorie absorption and low sugar uptake, the amount of insulin released will be lower. Low insulin response allows your body to use fat for energy needs, thereby helping you to shred fat faster.