Two powerful minerals. One simple, high-potency formula. Responsible for hundreds of biological functions in your body, calcium and magnesium are essential minerals with big potential health benefits. While your body uses about 99% of its calcium for teeth and bones, around 1% plays key roles in vascular contraction and vasodilation, muscle function, nerve transmission and more. Meanwhile, magnesium is a cofactor in more than 300 biochemical reactions including healthy protein synthesis, blood glucose support, muscle and heart function as well as healthy mood and restful relaxation. Solaray Cal-Mag 2:1 is formulated with calcium and magnesium that are chelated to whole rice concentrate rather than ordinary soy, yeast, or milk proteins like other products. And because we're committed to crafting products that just work better, our formula includes glutamic acid to help enhance the absorption of our already highly bioavailable minerals to help you Live Brighter!