ZMA is a unique patent-pending anabolic mineral support formula containing highly bioavailable forms of zinc and magnesium as zinc/-monomethionine (L-OptiZincC- U.S. Patents 4,764,633 and 5,278,329) and covalently-bound zinc/magnesium aspartate. Formulated with vitamin B6 to further enhance zinc and magnesium absorption and utilization, ZMA is a powerful non-steroidal, all-natural dietary supplement clinically proven to increase free testosterone and insulin-like growth factor (IGF-1) levels and enhance muscle strength significantly greater than placebo during a strength training program.