Natures Way K2+D3 120 CapsulesAlways read the label and follow the directions for use. If you're taking a calcium supplement, Nature's Way Vitamin K2+D3 helps promote optimal dietary calcium absorption for healthy, strong bones. It also supports cardiovascular system health. Vitamin K2 helps regulate osteocalcin, a protein used by the body in the bone mineralisation process which helps deposit calcium into bones, while Vitamin D3 helps promote calcium absorption. Strong Bones