URL of this page: http://freefacebookcredits2012.info/vitamink.html

Vitamin K


Vitamins are substances that your body needs to grow and develop normally. Vitamin K helps your body by making proteins for healthy bones and tissues. It also makes proteins for blood clotting. If you don't have enough vitamin K, you may bleed too much.

Newborns have very little vitamin K. They usually get a shot of vitamin K soon after they are born.

If you take blood thinners, you need to be careful about how much vitamin K you get. You also need to be careful about taking vitamin E supplements. Vitamin E can interfere with how vitamin K works in your body. Ask your health care provider for recommendations about these vitamins.

There are different types of vitamin K. Most people get vitamin K from plants such as green vegetables, and dark berries. Bacteria in your intestines also produce small amounts of another type of vitamin K.

Learn More

  • (University of Florida, Institute of Food and Agricultural Sciences)
  • (Academy of Nutrition and Dietetics)
  • Hemorrhagic disease of the newborn (Medical Encyclopedia) Also in Spanish
  • From the National Institutes of Health (National Institutes of Health, Clinical Center) - PDF Also in
  • (Centers for Disease Control and Prevention) - PDF Also in
  • (Harvard School of Public Health)
  • (World Federation of Hemophilia) Also in


  • From the National Institutes of Health (National Library of Medicine)

Clinical Trials

  • From the National Institutes of Health (National Institutes of Health)

Journal Articles References and abstracts from MEDLINE/PubMed (National Library of Medicine)

Patient Handouts