vitamin k

Vitamin K is a fat-soluble vitamin that plays a crucial role in blood clotting, bone metabolism, and regulating blood calcium levels. There are two main forms of vitamin K:

1. Vitamin K1 (phylloquinone): Found primarily in green leafy vegetables like spinach, kale, and broccoli. It is the main dietary form of vitamin K.

2. Vitamin K2 (menaquinones): Found in some fermented foods and animal products. It is also produced by bacteria in the human gut.

Functions of Vitamin K:

• Essential for the synthesis of proteins involved in blood clotting, which helps prevent excessive bleeding.
• Important for maintaining healthy bones by modifying certain bone proteins.
• Plays a role in cardiovascular health by preventing calcification of arteries.

Deficiency:

• Vitamin K deficiency can lead to bleeding disorders due to impaired blood clotting.
• Newborns are particularly at risk and often receive a vitamin K injection shortly after birth to prevent hemorrhagic disease.

Sources:

• Leafy green vegetables (spinach, kale, broccoli)
• Fermented foods (natto)
• Meat, dairy, and eggs (for K2)

If you want to know more about vitamin K, such as recommended daily intake, supplements, or its role in specific health conditions, feel free to ask!