★★★★★
Americans have a high dairy, high calcium diet. It appears that Magnesium is the most important mineral to reverse osteoporosis and improve bone density. Apparently, you can get an 11% improvement in bmd in 6 months on 600mg Magnesium, whereas you can take all the calcium in the world, and if you don't have any magnesium, you can't remineral bones. Apparently, 60% of americans are magnesium deficient.