Natural Factors Vitamin K & D combines 2 fat soluble vitamins into one convenient softgel. The form of Vitamin K is K2 which is an advanced, fat-soluble form of vitamin K that serves multiple functions in the body. Vitamin K most important function is aiding bone development by acting as a regulator and director of calcium in the tissues.

Vitamin D has long been considered a classic nutrient for bone metabolism. It supports bone development and is needed for calcium absorption. Vitamin K & D uses vitamin D3 (cholecalciferol), a natural form of vitamin D that is safer and more biologically active than D2 (ergocalciferol), a synthetic form of vitamin D. Evidence shows that vitamins K2 and D3 work synergistically to improve bone density.