Anonymous
Post 06/12/2015 08:14     Subject: Why do daily vitamins have such low amounts of magnesium?

Because of size. To put in a large amount, you'd need a giant pill, or multiple ones. And most people don't need 400mg supplement every day, then everyone would have too soft bm.
Anonymous
Post 06/12/2015 07:53     Subject: Why do daily vitamins have such low amounts of magnesium?

Too much magnesium causes diarrhea.
Anonymous
Post 06/12/2015 07:35     Subject: Why do daily vitamins have such low amounts of magnesium?

I take a separate supplement but U.S. There a reason? Do people over 50 need more than 400?