Build stronger, healthier bones with Nature's Way Oseto-K! Nature's Way Osteo-K Vitamin K2 helps increase the amount of calcium deposited in bones for stronger bone density. It works by moving and binding calcium to bones and teeth where it is needed most. Osteo-K Vitamin K2 also helps keep calcium away from areas where it shouldn't be, such as your arteries, and helps support your cardiovascular health.Vitamin K2 is the most beneficial form of Vitamin K for bones and stays in the body for longer. Unlike Vitamin K1 which is used to activate blood clotting proteins, Vitamin K2 is beneficial for activating proteins which bind calcium to bones. Vitamin K2 is found in fermented foods such as Natto and Sauerkraut but many Australians may not have sufficient Vitamin K2 in their diets.