Zinc is involved in many processes that are essential for maximum fitness; magnesium aides in protein synthesis; and vitamin B6 is necessary for unlocking carbohydrate energy and supporting amino acid synthesis, crucial for sustaining training and muscle growth.
As sometimes happens in the world of supplement research, ZMA tests have been mixed, depending on what study you look at. What we do know is that each mineral in ZMA is essential for maximizing training efforts, particularly if you work out with serious intensity
Most ZMA products contain 30 milligrams of zinc, 450 milligrams of magnesium and one milligram of B6. Generally you should take the recommended dose on an empty stomach one hour before sleep.