Doppelherz Vitamina K2 + D3 2500 is a dietary supplement based on Vitamin K2 and Vitamin D for bone strengthening, maintaining calcium levels and fighting blood clotting. The supplement contributes to the normal functioning of the immune system and to the maintenance of normal bone and muscle function. Doppelherz Vitamina K2 + Vitamina D 2500 IU is recommended for people who have a deficiency or who want to ensure an additional amount of vitamin D.