i second mr b's comment re magnesium.
best is to get it from high intakes of dark leafy greens, certain fish, and nuts/seeds.
the most absorbable supplemental form is magnesium glycinate. if supplementing vit d3, take some with vit d3 and some at a different time.
potassium can be a useful thing to take in combination with magnesium. or eat bananas
READ ME key info on nutrient targets - www.thisisms.com/ftopict-2489.html
my approach: no meds so far - just nutrient-dense anti-inflammatory whole foods, and supplements where needed
info: www.whfoods.com, www.nutritiondata.com