According to FDA sources HGC is approved for the treatment of infertility but has not been proven effective for treating obesity; orally ingested or given in injections. Clinical trials have shown that weight loss achieved by users of the HCG diet resulted from a drastic reduction in caloric intake. The diet and treatment protocol recommends 500 calories a day. ~~According to the FDA any company selling this product to be used for weight loss is in violation of the law. ~~