Recent study from the British Journal of Cancer has found that usage of popular supplements may increase the risk of testicular cancer by up to 300%.
A recent study has found that usage of popular supplements such as creatine and androstenedione may increase the risk of testicular cancer by up to 300%.
While androstenedione is prohibited from use both in and out of competition by the USADA and WADA prohibited lists, it is still an extremely popular, and completely legal, over the counter supplement. Creatine is practically considered an essential supplement for athletes, and is not a prohibited substance.