Vitamin K

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Vitamin K is classified as a fat-soluble vitamin essential for the functioning of several proteins involved in blood clotting. There are two naturally occurring forms of vitamin K, one synthesized by plants (phylloquinone) and the other by the natural bcteria in the intestines (menaquinone). Synthetic form of vitamin K is called menadione. Vitamin K originates from the German term koajulation and is also known as antihemorrhagic factor because of its role in blood coagulation.