Lack of magnesium can cause alot of problems. They say too much calcium can deplete what magnesium you do have. Did you know that cramps can come from lack of magnesium? They say a heart attack is a cramp. Best magnesium is in powder form, absorbs into body quicker. Alot of people take it at night because it helps them sleep better and relaxes their muscles. Dee Check out some of my other remedies at: http://wwwherbsandmore.blogspot.com/   visit the page