Helps maintain bone mineral density and supports healthy blood vessels*. Thorne's Vitamin K contains three clinically studied forms of vitamin K – vitamin K1, and two forms of vitamin K2 (MK-4 and MK-7).* It contains significantly more MK-4 than most other multiple-K products on the market.*
 
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.