Vitamin D-3 & K-2 is the combination of the two nutrients with clinically proven benefits for the cardiovascular system, bones, and teeth. Vitamin D3 or the sunshine vitamin facilitates transport and absorption of calcium into the bones and teeth. Vitamin K2 is important on bone matrix formation and on metabolism of calcium in the different parts of the vascular system. visit us http://www.tasmanhealth.co.nz/now-foods-vitamin-d- 3-k-2/ for more details!!