However, if you check out the list at the beginning of the link, you will find that, in reality, from a 500
mg tablet of
Mg oxide, you only absorb about 12
mg of ELEMENTAL
Mg. In fact, because of its laxative effect, Mg oxide can actually deplete you of Mg. Mg glycinate delivers 100 mg per 500 mg tablet...better, but still nowhere near the 400 mg RDA of elemental Mg. So, it's a really good thing you didn't know THAT...oh my!