Human chorionic gonadotropin is a hormone produced during pregnancy. The hormone is present in the urine, and it's the presence of hCG that home pregnancy kits are checking for when such a test is performed hCG could suppress appetite, burn stored fat as well as redistribute fat from the hips, thighs and waist. One reason why it is a good fat suppressor. This is where Human Chorionic Gonadotropin Weight Loss came from.