The calcium, magnesium and vitamin D3 contained in Vitatabs® C + Kalkki D enhance bone health and are important for the muscles and teeth. Vitamin D enhances the absorption and utilization of calcium and phosphorus, vitamin C the formation of collagen, e.g. for the normal functioning of the skin and cartilage. Vitamin K2 (menaquinone) contributes to normal blood clotting and to the maintenance of normal bones.