Vitamin K

A fat soluble vitamin


  • Normal blood clotting.
  • Synthesis of proteins involved in blood coagulation.


  • Dark green leafy vegetables (Turnip greens, dark green lettuce)
  • Alfa-alfa
  • Liver
  • Milk
  • Yogurt
  • Egg yolk
  • Fish liver oil
  • Broccoli
  • Cabbage
  • Cauliflower
  • Brussel Sprouts


  • Dietary deficiency is rare.
  • Severe liver dysfunction may impair utilization which may lead to bleeding.


  • Toxicity rarely occurs from vitamin K obtained from dietary sources.
  • Toxic effects may occur due to synthetic vitamin K (supplements) taken without proper medical advise.

Recommended dietary allowances