Basis for the Steroid Detection Calculator

The basis for the "Is He on Steroids?" calculator is pretty straightforward and based on the research done in this paper. Basically, there is a pretty clear limit in the amount of fat free body mass someone can gain naturally, and that number is generally in related to the Fat Free Mass Index (FFMI), which is the ratio of lean body mass over height squared. If your FFMI is above 25.0, there is a pretty good chance your getting some "help". Obviously, someone could be under 25.0 and still be using steroids. This calculator isn't going to detect that.