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Which Foods Contain Vitamin K?

Updated July 19, 2017

Vitamin K is a fat-soluble vitamin that is important for blood coagulation or clotting. Although vitamin K is produced by the body, the fat cells that store vitamins store little vitamin K. Eating a diet rich in vitamin K is important for healthy blood function.

Types

Vitamin K is found in green leafy vegetables such as spinach, kale, cabbage, green-leaf lettuce and broccoli. Other sources of vitamin K are green tea and cereals.

Recommended Intake

Doctors recommend the following daily intake of vitamin K: Infants need 2.5mcg; children ages 1 to 3 require 30mcg; children ages 4 to 8 should get 55mcg; children ages 9 to 13 need 60mcg; children ages 14 to 18 should have 75mcg; and adult males and females need 120mcg 90mcg, respectively.

Considerations

In adults, a vitamin K deficiency is rare. However, signs of a deficiency are easy bruising, blood in urine or stool, nosebleeds or excessive menstrual bleeding. A medical professional can diagnose if it is indeed a vitamin K deficiency.

Expert Insight

Scientists have recently found a direct link between inadequate vitamin K intake and osteoporosis.

Warning

Patients who take Warfarin or Coumadin should not exceed between 90 to 120mcg of vitamin K daily as it may interfere with the medicine's effectiveness.

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About the Author

Christina Barber has been writing both fiction and non-fiction for four years, and has three fiction books published with small press publishers. She has won the 2006 Dream Realm award for her fiction. Barber has worked in the food industry, and is passionate about healthy eating. She enjoys being able to tie her love for cooking and writing together.