NOW Foods Calcium/magnesium 1000/500 mg, 100-Tablets
Calcium and Magnesium are essential minerals that work synergistically with one another to promote enhanced absorption.  Calcium is necessary for strong bones and teeth, and Magnesium is important for healthy enzymatic activity. This reverse ratio formula is designed to provide higher levels of magnesium for those who desire the nerve, muscle and bone supporting effects of this essential mineral. Zinc and Magnesium are involved in hundreds of enzyme systems in the body.