Cal/Mag 1:2 formula offers a unique double amount of magnesium to address clinical deficiencies of this important mineral. Current research indicates that magnesium is essential for the body’s proper absorption and use of calcium, since it keeps calcium dissolved in the blood. Calcium in the citrate/malate form is one of the most bioavailable forms of calcium. Proper levels of calcium and magnesium are important to maintain healthy bones as well as a healthy heart. In addition, this formula includes essential minerals, zinc, potassium and boron.*