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Vitamin K

Vitamin K serves a number of essential functions within the human body. However, many people don’t get enough through diet, which makes vitamin K supplements necessary.

What Does Vitamin K Do?

Vitamin K is a fat-soluble vitamin that plays an important role in blood clotting. Many people take vitamin K supplements based on claims that it can help prevent:

  • Arterial calcification and cardiovascular disease
  • Dementia and other brain health problems
  • Heart disease
  • Infectious disease, such as pneumonia
  • Leukemia
  • Liver cancer
  • Lung cancer
  • Osteoporosis
  • Prostate cancer
  • Tooth decay
  • Varicose veins

Who Needs to Take Vitamin K Supplements?

Before you begin any supplement, it’s a good idea to talk to your physician. You need to know that many people are vitamin K-deficient. Because this essential nutrient comes primarily from green, leafy vegetables, millions of Americans may need to take vitamin K supplements.

Some groups of people who are at a higher risk of vitamin K deficiency are those who:

  • Have diseases that affect absorption in the digestive tract, such as Crohn’s disease or celiac disease
  • Take prescription drugs or use recreational drugs that interfere with vitamin K absorption
  • Are malnourished
  • Drink alcohol heavily