Nutrilite Cal Mag D Plus helps you obtain your daily dose of calcium in one tablet which contains more vitamin D. These tablets also contain concentrated botanical sources of calcium and magnesium drained from calcified seaweed harvested from the Icelandic fjord seafloor. Both minerals are essential to your cells, and the right balance between the two improves overall health. Calcium, an important component of any healthy diet, plays an important role in building healthy bones. Magnesium oxide is one of the most common magnesium dietary supplements due to its high magnesium content per weight. Start improving your overall health today.