Vitamin D3 4000iu & Vitamin K2 100mcg. Vitamin D3 (4000IU) – 100mcg (2000% NRV). Vitamin K2 (MK-7)– 100mcg (133% NRV). Vitamin K2 contributes to normal blood clotting. Together, Vitamin D3 & Vitamin K2 both contribute to the maintenance of normal bones.