As Mark McGwire establishes the single-season record of 70 home runs, reporters, sportswriters, columnists, and fans speculate about the possible role of the steroid, Andro, in his achievement. It's a supplement commonly used by bodybuilding.
Androgens are the male sex steroids.
The best known androgen is testosterone. Androstenedione is a steroid. In the body, it is converted to testosterone. It can also be converted into the female sex steroid, estrogen, in boys and girls. Androstenedione is not a banned androgenic steroid in baseball, but it is banned in most other sports, both in the U.S. and abroad.