Calcium/Magnesium (citrate/malate) work together to support a healthy cardiovascular system. Calcium is necessary for healthy teeth and bones, and Magnesium supports muscle and nerve function and helps the body to metabolize and absorb calcium. Calcium maintains healthy heart function and normal colonic cell growth, and also helps to maintain normal mood during the menstrual cycle. Calcium and Magnesium have been shown to support a healthy mood and demeanor during PMS. Calcium/ Magnesium citrate/malate is one of the most bioavailable forms of these two minerals.