Vitamin K Unit Converter

Vitamin K is a fat-soluble vitamin essential for blood clotting, bone health, and cardiovascular function. It exists in two main forms: vitamin K1 (phylloquinone), found primarily in green leafy vegetables, and vitamin K2 (menaquinones), found in fermented foods, animal products, and produced by gut bacteria.

Vitamin K acts as a cofactor for an enzyme that activates several proteins involved in blood clotting (factors II, VII, IX, and X) and bone metabolism. Without adequate vitamin K, these proteins cannot function properly.

Most people get sufficient vitamin K from their diet, and deficiency is rare in healthy adults. The body also recycles vitamin K efficiently, reusing it multiple times before it is excreted.

Vitamin K1 is obtained from dietary sources, especially green leafy vegetables, vegetable oils, and some fruits. Vitamin K2 is produced by bacteria in the large intestine and found in fermented foods (like natto), cheese, eggs, and meat.