Researchers at Hoffman-LaRoche found that hydroxycitric acid (HCA), the active ingredient in CitriMax®, significantly reduced weight gain, food intake and total body fat in test animals receiving the supplement for 11-30 days.

Source: Sullivan AC, Triscari J, Hamilton JG, Miller ON, Effect of (–)-Hydroxycitrate Upon the Accumulation of Lipid in the Rat: II. Appetite, Lipids, 9:129-134, 1974.