Vitamins D and K are both fat-soluble vitamins that play a central role in calcium metabolism. Vitamins D and K are more effective combined together than alone in protecting your heart and promoting bone health and reducing the risk of osteoporosis. Nevancia Vitamin K2 and D3 is formulated by experts in the right proportion, which may improve bone mineralization, increase bone density, and reduce the risk of fractures and improve cardiovascular health.