7-keto-DHEA: a by-product of the hormone dehydroepiandrosterone (DHEA) that is formed by the adrenal glands. Some people report taking 7-keto-DHEA as a dietary supplement to enhance weight loss, but its effects in this area have not been proven. It is not converted to steroid hormones such as androgen and estrogen and does not increase steroid levels in the blood. Proponents claim that 7-keto-DHEA can improve lean body mass, build muscle, speed metabolism, strengthen the immune system, enhance memory, and slow aging. However, none of its benefits have been scientifically proven, and there are insufficient studies to establish whether taking this supplement is safe.
WebMD.com. 7 - KETO - DHEA.