There are so many good reports that beg health-minded consumers to supplement their diet with magnesium. This muscle relaxant, natural calcium blocker and enzyme co-factor is so critical to the human body. When farmers began using phosphate fertilizers nearly a century ago the amount of magnesium in the American diet plunged. Some studies show at least 4 in 10 Americans don’t consume enough magnesium. You get magnesium out of green leafy vegetables but you need to eat a lot to meet your needs. Magnesium is also critical for proper vitamin B1 thiamin utilization. A bulky mineral, in adequate doses (200-400 mg) it needs to be consumed separately from a multivitamin. Magnesium oxide is the most economical dietary supplement but while cheap, only 4% is absorbed. More beneficial forms are mag orotate, malate, citrate. Magnesium threonate is touted for the brain and most users remark its effect is quite demonstrable. Magnesium should be tried for cluster and migraine headaches.