Garcinia cambogia is a well-known fat-burning product. It is produced from the fruit, which is known as Garcinia gummi-gutta or Malabar tamarind. Garcinia cambogia pills are prepared from fruit peel extracts. The peel of the fruit includes a high concentration of hydroxycitric acid (HCA), an active chemical with weight loss benefits. HCA levels in supplements range from 20 – 60%. research suggests that those with 50-60% HCA may give the most effect. This acid reduces fat storage in the body and delays stomach emptying.This keeps you full for a long period and so minimises your chances of overeating. HCA inhibits the enzyme citrate lyase in the body, which aids in the process of fat synthesis from carbs.They also decrease appetite by raising levels of the brain chemical serotonin in the body, which is known to lessen food cravings.