Supporting evidence of human hydroxycitric acid efficacy for weight control is based largely on studies with small sample sizes studies that failed to include a placebotreated group, and use of inaccurate measures of body lipid change.Although hydroxycitric acid effectiveness
remains unclear, at least 14 separate hydroxycitric acid–containing products are
presently sold over-the-counter to consumers.This investigation was designed to overcome limitations of earlier studies and examine the effectiveness of hydroxycitric acid for weight loss and fat mass reduction in a rigorous controlled trial.