Zinc, Magnesium and Vitamin B6. ZMA is a unique patent-pending anabolic mineral support formula containing highly bioavailable forms of zinc and magnesium as zinc/-monomethionine (L-OptiZinc) 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 enh