Posted by iHerb Customer on Jun 28, 2009 | Verified Purchase
I started taking about 500mg of magnesium daily a few years back. It was trial and error to find a preparation of larger doses of magnesium that did not cause diarrhea. Albion lab chelated minerals are the best I've found for magnesium and calcium in terms of absorption with no side effects. I highly recommend these if the doses are what you're looking for.