Originally Posted by Skyseternalangel
You are most likely deficient in magnesium. Take a supplement and you should be fine.
But run it by your Dr.
This and Mag phose (you can get it at health food store) when you get the cramp one mag phose under the tongue and cramp will go in an un-believable time.
Cal Mag as a preventive everyday. I'm one of those lucky (?) people that when I start doing a bit of work (full day of mountain biking, skiing or climbing etc) I get nasty nasty cramps in the legs (calf and hamstring). Cal mag made a HUGE different, I still carry the mag phos just incase.