ZMA Pro [ by Universal Nutrition ]

Universal Nutrition uses only the highest quality patent-pending ZMA that has scientifically shown to be 2 1/2 times more potent than a placebo! ZMA is the only non-steroidal, all natural dietary supplement that is 100% clinically proven to increase Testosterone levels and increase strength in athletes. Increased muscle tissue growth and recovery can only be achieved if your body is kept in an anabolic state for a significant length of time. ZMA will help your body to stay in this anabolic state thereby increasing your body's overall lean muscle mass.

In an eight week double blind, placebo controlled study with college football players, ZMA was found to increase total plasma testosterone levels by 32.4%, increase Insulin-Like Growth Factor by 3.6%, increase free testosterone levels by 33.5%, and increase muscle strength by 11.6%. This study is decisive because the testosterone levels and IGF-1 levels actually lowered in the placebo group overnight, whereas with the ZMA group, it jumped substantially.