The supplicant of multi-vitamins and minerals of the Life Extension already love. Essential minerals that are not entered in it is this calcium and magnesium. To compensate for this, we chose here of calcium, which also has been chelated. In the evening, 2 along with magnesium: has been taking in one of balance. Extent of the effect, because previously not recently here though was the Cramps well during sleep, I think I'm worked! ~ Then ~ magnesium and calcium is to know that there is better to intake separate, now I am taking alternately magnesium and calcium every other day. The recommended amount, 750 ~ 1000mg. It is a little a large amount, but will continue as it is. Speaking of which - I have no longer be prolonged as compared to the previous even in a situation or something frustrating. This is also when I think now, it might be calcium effect.