My multivitamin, GNC Mega Man, has 25mg of Zinc in it. If I was to take ZMA, an article I read said a good amount in a ZMA supplement would be 30mg, along with say 15mg from foods I eat, this would be giving me 70mg of Zinc a day. The National Institute of Health says the upper limit for Zinc in a day is 40mg.
With Magnesium, the upper limit for a male 20 years old is 400mg. My multivitamin already provides 100mg, and the article says ZMA supplements should have 450mg. This gives me 550mg a day.
Are these numbers too high? Is the fact that I'm on a
calorie restriction and cutting going to change these numbers at all (the upper limit that is)? Drinking about a gallon of water a day.
Is it even worth it to take ZMA? I have read the evidence that supports it and it seems to work well. Any thoughts?
-Matt