Vitamin K is necessary for blood clotting. Without it, even a small cut would cause continuous bleeding in the body. Vitamin K also plays an important role in kidney function and bone growth and repair - some studies have even shown that it may help prevent osteoporosis. Nutritionists categorize vitamins by the materials that a vitamin will dissolve in. There are two categories: w ater-soluble and fat-soluble vitamins. Fat-soluble vitamins, vitamins A, D, E and K are stored in the fat tissues of the body for a few days to up to 6 months. If you get too much of a fat-soluble vitamin, it can be stored in your liver and may sometimes cause health problems. Vitamin K is a fat-soluble vitamin. Some people take mega-doses of fat-soluble vitamins, which can lead to toxicity. Eating a normal diet of foods rich in these vitamins won't cause a problem. Remember, you only need small amounts of any vitamin.

Vitamin K is necessary for normal blood clotting and synthesis of proteins found in plasma, bone, and kidneys.

Vitamin K is found in spinach, lettuce, kale, cabbage, cauliflower, wheat bran, organ meats, cereals, some fruits, meats, beef liver, dairy products, eggs, green tea.