NOW combines two nutrients extensively researched for their contribution to the health of bones, teeth and the cardiovascular system.* Vitamin D3 promotes calcium transport and absorption.* Recent studies indicate that vitamin D3 may play a role in proper insulin action and glucose metabolism and has an important function within the immune system.* Vitamin K is critical for the formation of a healthy, strong bone matrix.* Vitamin K's role in arterial health revolves around its ability to support proper calcium metabolism in vascular structures.* Vitamin K2 is a readily active and biologically available form of vitamin K.* Other Ingredients: Rice Flour, Hypromellose (cellulose capsule), Ascorbyl Palmitate and Silicon Dioxide. Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.