Vitamins & minerals: Vitamin K

Vitamin K
( other names are menadione, phytonadione )

Vitamin K is needed in a small but critical amount to form essential proteins, mainly for blood clotting but also for kidney function and bone metabolism.
Natural sources are, bacteria living in the intestines produce about half the body’s needs the rest comes from diet. Good food sources are spinach, cabbage, broccoli, turnip greens, other leafy vegetables, beef liver, green tea, and oats.
Warning is megadoses higher than 500 mcg can be toxic or cause a allergic reaction and must be prescribed by a doctor.Large doses of Vitamin E may interfere with vitamin K’s blood clotting effects. Excessive calcium can interfere with vitamin K leading to deficiency.


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