Many of them will claim to block absorption of fat in your diet or reduce your overall body fat and build muscle. Some green tea extract claim to boost your metabolism along side with reducing your appetite. In nature humans should have a healthy appetite and eat a small balanced meal every 2-3 waking hours. Fat should not be absorbed, but burnt through a natural process as a result of eating real food and doing the right exercises that are based on burst of exertion. Doing that will also build muscle naturally while pills will do it artificially if they do it at all. Exipure Supplement helps to reduce your body weight.