Vitamin K is a fat-soluble vitamin that exists primarily in two forms: K1 (phylloquinone) found in plants, and K2 (menaquinone) found in animal products and fermented foods. It is crucial for the synthesis of proteins required for blood clotting and bone health. Without sufficient vitamin K, the body cannot control bleeding, which is a vital consideration in toxicology, especially when dealing with anticoagulant toxins.
