I use “Stress-Relax” magnesium citrate. I serving (1 scoop) has 300 mg. which is equal to 70%+- daily allowance. Another great benefit is it calms me and helps with the occasional constipation that can happen with certain medications.

I love calcium citrate from Doublewood. Have been taking it for years for other issues. This may sound weird but if you find no reason for cramps, try taking a slug of pickle juice , apple cider vinegar or mustard when you get the cramps.. I swear by it only once it didn't work. I also use it for leg cramps.I have PsA and my hands cramp from holding a book while I read or struggle to open jars. Old age . It's beautifal isn't it?