Do You Need Vitamin K?

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Vitamin K is necessary for normal blood clotting and for maintaining optimal bone health. This fat-soluble nutrient is required in only small amounts to perform its important functions in the body and is not usually recommended as a supplement in large doses. If you choose to supplement for bone health, consider supplementing 50 to 100 micrograms of the K2 (menaquinone) form.

In fact, a healthy diet fulfills the vitamin K requirements of most people. Leafy greens (Swiss chard, kale, parsley, Brussels sprouts and spinach), broccoli (cooked), cauliflower, liver, and wheat bran are all foods naturally rich in vitamin K.

Your intake of vitamin K (from diet and/or supplements) should be carefully monitored and regulated if you take anticoagulants or blood thinners, as the therapeutic effects of many of these drugs are influenced by vitamin K. Be sure to discuss this with your health care provider.

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