Results of the present study do not support contentions that ZMA supplementation increases zinc or magnesium status and/or affects training adaptations in experienced resistance trained males with normal zinc status. These findings are in contrast with the notion that ZMA supplementation can increase zinc and magnesium status, anabolic hormone status, and/or strength gains during training. These findings refute claims that ZMA supplementation in the amount and manner investigated provides ergogenic value to experienced resistance trained athletes. Whether higher levels of ZMA is needed to promote these adaptations in experienced resistance-trained males; ZMA supplementation may influence zinc and magnesium status and/or training adaptations in individuals with low zinc and magnesium status; and/or, whether ZMA supplementation may have therapeutic and/or ergogenic value in other populations (e.g., untrained, females, elders, etc) remains to be determined.
thank you so much Lionheart!
My english is a little rubbish tho, but it seems like theyre saying that zinc + magnesium doesnt promote hormone levels etc. unless you already have a low level of zinc and magnesium in the body?