The plant garcinia cambogia is a small fruit that resembles a miniature pumpkin. It is indigenous to India and parts of Asia, and an extract from its fruit and rind is popular in many natural weight loss products. The extract is hydroxycitric acid (HCA), claimed to suppress appetite and enhance fat-burning. The research done on garcinia cambogia supports these claims.
The theory behind garcinia cambogia is that HCA inhibits an enzyme called citrate lyase that helps turns excess carbohydrates into fat. By inhibiting this enzyme, it is believed the body instead boosts carbohydrate oxidation, or simply put, burns the extra carbohydrates. In extensive animal studies, garcinia cambogia was found to reduce food intake by suppressing appetite, as well as to decrease body fat. Human trials have also proved that. Some double-blind studies using garcinia cambogia and a placebo showed the HCA group as doubling or tripling weight loss over a 12-week period as compared to the control group. Researches done on garcinia cambogia have shown that there are no known adverse effects in healthy adults.