The tetesept Magnesium Calcium 500 Vitamin K2 + D3 2000 ensures a comprehensive supply of muscles and bones with its 4-fold muscle-bone complex made of magnesium, high-dose calcium, vitamin K2 and D3. Magnesium and calcium are essential for the performance of our muscles and the stability of the bones. Vitamins K2 and D3 are an important duo in bone metabolism. There may be an increased need for these nutrients, especially during heavy physical exertion, but also during growth and increasing age. While vitamin K2 acts as a cofactor for various bone proteins, vitamin D3 serves, among other things, as an incorporation aid for the bone mineral calcium. In this way, they contribute to bone preservation.