Vitamin K1, còn được gọi là Phylloquinone or phytonadione, is a fat-soluble vitamin naturally found in green leafy vegetables and essential for the synthesis of blood clotting factors and bone proteins. It is commercially được sản xuất bởi chemical synthesis and is available as a clear yellow viscous oil or in emulsified powder forms for various ứng dụng.
Vitamin K1 plays a critical role in the activation of coagulation proteins and osteocalcin for bone metabolism. It is used in dietary thực phẩm bổ sungs, infant formula, food fortification, and dược phẩm preparations for treating or preventing vitamin K deficiency. Its superior bioavailability and safety profile compared to synthetic vitamin K3 make it the preferred form for human dinh dưỡng.