Vitamin K (fylochinon) is a collective name for several vitamin K's. It includes vitamin K1, vitamin K2 and vitamin K3. Vitamin K is supports blood clotting. It is often used by elderly people and it is therefore often included in 50+ multivitamins. We sell both multivitamins with vitamin K and single vitamin K supplements. Good sources of this vitamin are vegetables like spinach, fruit, milk, meat and eggs. Vitamin K is created in the colon. We have selected as much natural products and selected on the basis of quality and purity. We sell only supplements from trusted manufacturers so our customers can rely on the products being safe to use!