Ecdysterone is the main compound in spinach extract. It is a phytosteroid that occurs naturally in plants and belongs to a class called phytosterols, which are structurally similar to cholesterol. In a study commissioned by the World Anti-Doping Agency (WADA), ecdysterone was shown to enhance muscle cells. In the 1980s, ecdysterone was called the “Russian Secret” as Russian Olympians were suspected of using the natural steroid as a performance enhancer.
The Natural Advantage