Taking vitamin K1 seems to increase bone strength and might prevent fractures in older women. But it doesn't seem to benefit older women who still have strong bones. Taking a specific form of vitamin K2 seems to improve bone strength and reduce the risk of fracture in most older women with weak bones. It works best in people who have low vitamin K levels. Taking vitamin K along with warfarin also seems to help stabilize blood clotting time in people taking warfarin. However, injecting vitamin K1 under the skin does not seem to work. Taking vitamin K1 by mouth or as in injection into the vein can reverse too much blood clotting caused by warfarin. Reversing the effects of too much warfarin used to prevent blood clotting.Taking vitamin K by mouth or as an injection into the vein can help prevent bleeding in people with VKCFD. An inherited bleeding disorder called vitamin K-dependent clotting factors deficiency (VKCFD).Taking vitamin K1 by mouth or as an injection into the vein can prevent and treat bleeding problems in people with low levels of prothrombin due to using certain medications. Treating and preventing bleeding problems in people with low levels of the blood clotting protein prothrombin.Giving vitamin K1 by mouth or as a shot into the muscle helps prevent bleeding problems in newborns. Preventing bleeding problems in newborns with low levels of vitamin K (hemorrhagic disease).SLIDESHOW Vitamin D Deficiency: How Much Vitamin D Is Enough? See Slideshow
Vitamin K is an essential vitamin that is needed by the body for blood clotting, bone building, and other important processes. They explained there wasn't enough scientific evidence to make larger increases in the recommended amount of vitamin K. In 2001, the National Institute of Medicine Food and Nutrition Board increased their recommended amounts of vitamin K slightly, but refused to make larger increases. Vitamin K is also given to treat and prevent vitamin K deficiency, a condition in which the body doesn't have enough vitamin K.Īn increased understanding of the role of vitamin K in the body beyond blood clotting led some researchers to suggest that the recommended amounts for dietary intake of vitamin K be increased. It is also used to prevent clotting problems in newborns who don't have enough vitamin K. For example, vitamin K is used to reverse the effects of "blood thinning" medications when too much is given.
Vitamin K is most commonly used for blood clotting problems. Vitamin K1 is generally the preferred form of vitamin K because it is less toxic, works faster, is stronger, and works better for certain conditions. Vitamin K1 (phytonadione) and vitamin K2 (menaquinone) are available in North America. Several forms of vitamin K are used around the world as medicine. The name vitamin K comes from the German word "Koagulationsvitamin." Vitamin K is a vitamin found in leafy green vegetables, broccoli, and Brussels sprouts.
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