Vitamin K is a group of structurally similar, fat-soluble vitamins that are needed for the posttranslational modification of certain proteins required for blood coagulation and in metabolic pathways in bone and other tissue. They are 2-methyl-1,4-naphthoquinone (3-) derivatives. This group of vitamins includes two natural vitamers: vitamin K1 and vitamin K2. The three basic forms of Vitamin K are K1, K2, and K3.
Vitamin K has several important functions including:
- being needed for blood clotting, which means it helps wounds heal properly.
- There is also increasing evidence that vitamin K is also needed to help build strong bones.