Hydroxycitric acid tripotassium hydrate (Potassium citrate monohydrate) is the major active ingredient of Garcinia cambogia . Hydroxycitric acid tripotassium hydrate competitively inhibits ATP citrate lyase with weight loss benefits. Hydroxycitric acid tripotassium hydrate effective inhibits stones formation and also inhibits HIF , and has antioxidation, anti-inflammation and anti-tumor effects .