Calcium Night is specifically designed to be taken at night. Research indicates that food eaten during the day usually maintains adequate calcium levels in the blood. Taking calcium supplements at night offers added support until breakfast. Calcium is perhaps best known for its role in the formation and structure of bones and teeth. Is is also integral to nerve transmission, muscle movement, and several enzyme systems. CALCIUM NIGHT is a technologically advanced formula, providing optimal forms of calcium and key co-nutrients to help support a healthy skeletal system. CALCIUM NIGHT also contains a 1:1 ratio of calcium and magnesium, along with other minerals such as copper and manganese to provide support for bones.