what vitamin supplement prevents leg cramps
1 Deficiencies are linked to leg cramps. 2  1,000 IU of vitamin D daily. The best food sources for vitamin D are herring, salmon, sardines, and fortified soy milk.  1,000 to 1,200 mg calcium citrate daily. The best food sources for calcium citrate are dark leafy greens, almonds, canned salmon, and sardines.