Nutralife Vitamin K2 Plus D3 supports bone health. Vitamin K2 (MK7) & D3 perform key functions that support bone & cardio health. They promote calcium absorption while ensuring that it does not build up in the arteries. Studies indicate that D3 enhanced with K2 may be more effective that traditional D3 supplements. K2vital is the purest most active & safe K2 MK-7, with proven bioavailability