Magnesium is a chemical element and an essential mineral.  The benefits of Magnesium for men include:

1. "Increases Free and Total Testosterone Values" (*see Study);

2. Cofactor in 300+ Enzyme Systems;

3. Helps Regulate Protein Synthesis, Muscle and Nerve Function, Blood Glucose Control, and Blood Pressure Regulation.
A study was conducted to find the "effects of magnesium supplementation on testosterone levels of athletes and sedentary subjects at rest and after exhaustion." The results showed "that supplementation with magnesium increases free and total testosterone values in sedentary and in athletes. The increases are higher in those who exercise than in sedentary individuals (Study)."
Powerlete™ contains 48% of the daily recommended dose of Magnesium for men per serving.†