NATURAL FACTORS - VITAMIN K + D - 180 Softgel(s) - NPN: 80005016 -- Vitamin K + D from Natural Factors provides two major fat-soluble vitamins for bone and vascular health: bioactive and highly bioavailable vitamin D3 (cholecalciferol), and vitamin K2 (menaquinone-7 [MK-7]) from natto beans. Both vitamins act on calcium and guide the mineral toward where it is needed throughout the body.