Importance of Vitamin K
March 18, 2010
Vitamin K is better known as the vitamin that is responsible for clotting of the blood. The coagulation vitamin is extremely importance in the newly born.
Since this vitamin is unable to cross the placenta and the infant does not have the bacteria in the intestine to produce this vitamin, they are at high risk of clotting related complications.
It is for the same reason that practice of circumcision is delayed for 4 to 6 days after the birth. Otherwise, IV dose of vitamin K may be injected right after birth to avoid any complications.
It is equally important in adults, especially in women. Women who are pregnant and those who are suffering from heavy periods are often prescribed supplementation of vitamin K. Those suffering from ulcerative colitis, celiac disease, Chron`s disease too need to take vitamin K supplementation.
Other functions of vitamin K include formation of healthy bones and teeth. Recent studies suggest that the vitamin is helpful in better absorption of calcium by the body.
Because of its anti-clotting properties the vitamin is able to prevent hardening of the arteries and hence provide protection against cardiovascular diseases.
Food Sources
Most common sources of vitamin K are broccoli, spinach, pig`s liver, lean meat, string beans, tomatoes, lettuce, cheese, liver and cauliflower. Though the vitamin is heat stable it can be destroyed by radiation exposure and air pollution.
The absorption of the vitamin K is considerably reduced in presence of high doses of vitamin E, rancid oils, antibiotics and excess sugar.
The vitamin is produced in the intestine and its production can be enhanced in presence of yogurt.
Deficiency
An average adult is able to produce enough vitamin K in intestine. But in case of a health disorder 5 mgm needs to be given either orally or through an injection. Deficiency of vitamin K can cause miscarriage, internal hemorrhage and nosebleeds.
In case of a diabetic patient the situation could get more complicated since diabetic patients have a very low immune system. Untreated deficiency can lead to Alzheimer`s disease.
Toxicity
Vitamin K is available in two forms- K1 and K2. Toxicity is rare but with commercial supplementation of K2 toxicity may occur. Symptoms of vitamin K toxicity include congestion in the chest, flushing and sweating.
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