Ecdysteroids are not currently on the World Anti-Doping Agency (WADA) list of banned substances. While they have been used frequently by athletes and bodybuilders as performance enhancers and to increase muscle growth, their effects in humans have not been thoroughly studied. However, they are currently under review, as some researchers have proposed they be added to the list of banned substances as part of the “other anabolic agents” section.[1][2]