Webber Naturals Vitamin K2 + D3 features vitamin K2 as menaquinone-7 (MK-7), a fat-soluble form of vitamin K that offers 24-hour benefits in a single dose. Exciting research shows that vitamin K2 directs calcium to bones and away from arteries. Vitamin D3 plays a key role in calcium absorption and evidence shows that vitamins K and D work synergistically to improve bone density. This formula is also ideal for inhibiting calcification of arteries and ensuring the development of healthy teeth.