Stacker 3 with chitosan was designed for those who may be in search of a unique and powerful way to help get rid of ugly, unwanted body fat while receiving a powerful boost of energy. Stacker3's propriety formula contains chitosan, a fiber chemically processed from crustacean shells (shellfish). Like other forms of fiber, such as oat bran, chitosan is not well digested by the human body; as it passes through the digestive tract, it may bond with ingested fat and carry it out with waste. Stacker 3 is formulated to also help boost energy so you can get that extra pump you need while working out. Combine stacker 3 with diet and exercise today and soon your slimmer body will thank you. Stacker 3, from NVE Pharmaceuticals - the original manufacturers of the complete stacker 2 line as well as the original stacker 2. The World's strongest fat burner, who has been a market leader in diet and energy supplements for over 35 years. Quick & efficient with a natural blend of herbs which promotes weight loss from stored body fat. Breakthrough formula which helps burn stored body fat while delivering a powerful boost of energy.