Hardcore training can deplete your body’s minerals. Make sure you have adequate mineral support with ZMA®. This unique formula contains highly bioavailable forms of magnesium and zinc, including zinc l-monomethionine (opti-zinc®). Contains Vitamin B-6 which acts as a cofactor to an enzyme required for aspartate metabolism.* Zinc is involved with energy metabolism* Magnesium is an essential component of the muscle enzyme creatine kinase and is a vital factor in energy production and muscle contractions.*
Been using this for a quite a long time now. Highly recommended!