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Several teams of researchers have tried to identify whether the HCA in garcinia cambogia can actually help people lose weight. One 12-week study from Purdue University found overweight women who swallowed 1,200 mg of HCA daily lost about 55% more weight—8.2 pounds compared to 5.3 pounds—than women who did not take the garcinia cambogia supplement. But several other research efforts have failed to turn up similar benefits.
While the jury’s still out on whether garcinia cambogia-derived HCA can really help you lose weight, there are garcinia cambogia supplement options that will at least give you what you pay for. Puritan’s Pride ($22, puritan.com) and the Vitamin Shoppe ($14, vitaminshoppe.com) offer the least-expensive options that passed ConsumerLab.com’s tests. (Or go the natural route with these 25 best weight loss tips of all time.)