Vitamin K belongs to the group of fat-soluble vitamins, which means that they are soluble in organic solvents and are absorbed and transported in a manner similar to that of fats.
Vitamin K comes in three forms:
Vitamin K1, which is called phytonadione. This form is found in green plants and rich sources including: cabbage, broccoli, spinach and avocado.
The second form is, vitamin K2 is formed in intestinal bacteria and it is called menaquinone.
The third and final form is a synthetic of vitamin K, which we do not recommend as a supplement.