Vitamin K

Type: Compound
Vitamin: K
Name: Phylloquinone, Menaquinones,Phytomenadione (K₁)
RDA:
Males: 70 µg
Females: 55 µg
Obtaining adequate amount is not a problem.
Importance- to Body:
Essential for formation of clotting proteins and some other proteins made by liver; as intermediate in electron transport chain, participates in oxidative phosphorylation in all body cells.
Distribution- in Body:
Most synthesized by coliform bacteria in large intestine. In a number of related compounds known as quinones; small amounts stored in liver; heat resistant; destroyed by acids, alkalis, light, oxidizing agents; activity antagonized by certain anticoagulants and antibiotics that interfere with synthetic activity of enteric bacteria.
Excess Effects:
None listed, (not stored in appreciable amounts).
Deficiency Effects:
Easy Bruising and Easy Bleeding (prolonged clotting time)
Food Sources:
Leafy Green Vegetables, Cabbage, Cauliflower, Pork Liver
Environmental/Geographic Sources:
None listed
Supplemental information: