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Summary of Product
TL;DR - contains multiple supplements
ZMA is a patented formulation, which contains zinc, magnesium and vitamin B6.
It is claimed to increase testosterone levels, but there is no evidence to suggest that this occurs in healthy men. Though men with zinc deficiencies can supplement zinc to fix their deficiency and increase their testosterone levels, there is no evidence to suggest this occurs in men with no deficiency.
Aspartate has also been claimed to increase testosterone, but it is in too low of a dose in ZMA to have any effect on testosterone.
Despite ZMA’s lack of effect on testosterone levels, it can be a useful supplement for people that lack zinc and magnesium.
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Also Known As
Zinc Magnesium Aspartate
Do Not Confuse With
Zinc or Magnesium (Individual components)
Frequently Asked Questions
Questions and answers regarding ZMA
Q: Does ZMA cause weird dreams?
A: It is possible that ZMA can cause weird dreams, and the anecdotes support this; however, since this has not been directly investigated the best 'proof' that can be given is weak.
Read full answer to "Does ZMA cause weird dreams?"
Scientific Support & Reference Citations
Via HEM and FAQ:
Ebben M, Lequerica A, Spielman A
Effects of pyridoxine on dreaming: a preliminary study.
Percept Mot Skills. (2002)
De Souza MC, et al.
A synergistic effect of a daily supplement for 1 month of 200 mg magnesium plus 50 mg vitamin B6 for the relief of anxiety-related premenstrual symptoms: a randomized, double-blind, crossover study.
J Womens Health Gend Based Med. (2000)
(Common misspellings for ZMA include ZAM)