Originally Posted by Mike ODonnell
I believe it's based on Zinc, not Mg. Men have a higher zinc RDA based on more loss from....well, men fluid. Same thinking of why women have a higher RDA for iron, because women tend to lose more when menstrating.
Excessive zinc toxicity is not a good thing.
Actually the primary component is magnesium, and I guess maybe they are going by the RDA. Which is higher for men. But I think the RDA is wrong. Or I'll just say that any woman who has cramps needs more magnesium. I think many women can take even up to 1000 mg a day in divided doses, but working up gradually from 400. which is the men's dose.
But if they are going with the RDA it is 12mg for women and 15 for men, so the amount in ZMA is too high for both men and women.