Supports Bone Health High in Calcium & Magnesium 2:1 Ratio A Dietary Supplement Vegetarian/Vegan Kosher Minerals Family Owned Since 1968 GMP Quality Assured NOW Calcium & Magnesium combines two essential minerals that work together to maintain several critical physiological processes. They are both necessary for normal neural muscular and blood vessel function as well as for the maintenance of proper bodily fluid balance. Calcium and magnesium also support the formation and maintenance of a healthy skeleton.