There are a number of studies associating low levels of calcium and/or magnesium with PLMD, but no definitive studies showing that treating it cures the other. We don't know if this is a cause and effect or an innocent bystander
phenomenonRaynaud's phenomenon
Raynaud’s phenomenon. On the other
handHand or foot spasms
Hand tremor, there are many anecdotal cases of people taking calcium or magnesium supplements with good success. Check with your doctor before taking these supplements.