Vitamin K is a fat soluble vitamin

By: Taylor

What is Vitamin K?

Vitamin K is a fat soluble vitamin. The body stores vitamin K in fatty tissue and liver. Studies have revealed two natural form of vitamin K; vitamin K1 and vitamin K2.

Functions of Vitamin K

The first and foremost function of vitamin K is that it is necessary for the normal clotting of blood. Glumatic acid, an essential part of vitamin K, and carboxylate makes the blood from an open wound stick to a nearby tissue. This results in the clotting of the open wound and prevents excess bleeding.
It helps in the proper formation and activeness of the Gla proteins in the body. The Gla protein is known to prevent calcium formation in the tissue which in turn prevents cardiovascular diseases.
It aids in the maintenance of healthy and strong bones by blocking the formation of bone cells and by carboxylation of the protein found in bones.
Vitamin K is important for the production of sphingolipids, which aids in the proper functioning of the brain and nervous system.
Vitamin K plays a key role in regulating blood sugar.
This vitamin is known to be injected in newborns to prevent hemorrhage.
Sources of Vitamin K

Vegetable Products:

Green leafy vegetables, spinach, collards, mustard greens, swiss chard, romaine, green leaf lettuce, parsley, scallions, Brussels sprouts, cabbage, cauliflower

Animal Products: beef

liver, eggs, fish, liver


Cereals, chilli powder, paprika, curry powder, cayenne, blueberries, and kiwifruit

Deficiency of Vitamin K

Deficiency of vitamin K leads to:

Heavy menstrual bleeding, nose bleeding, gum bleeding, easy bruising.
Blood in the urine
Broken blood vessels
Gastrointestinal bleeding
Eye haemorrhages
Liver cancer
Increased risk of cancer
Birth defects like shortened fingers, flat nasal bridge, underdevelopment of the nose and mouth.

Recommended Dietary Allowance

Age Group Adequate Intake mcg/day
Infants0-6 months7-12 months 2.0 mcg2.5mcg
Children 1-3 years4-8 years 30 mcg55 mcg
Males9-13 years14 18
19 years and older

60 mcg75 mcg
120 mcg

Females9-13 years14-18 years
19 years and older

60 mcg75 mcg
90 mcg

Pregnant Females 90 mcg
Breastfeeding Females 90 mcg
Tips and Warnings

Freezing vitamin K enriched food is known to destroy the vitamin K, but heating does not have any effect on it.
People under other medications such as warfarin, antibiotics, cholesterol lowering medications, orlistat, phenytoin, should discuss with their doctor before the intake of vitamin K.
A stable and daily intake of vitamin K is essential for its proper functioning.
If you are on any blood thinning medicines, avoid the intake of food rich in vitamin K.
Those who are unable to consume vitamin enriched foods may get more benefits from the multivitamin rather than just individual vitamin K.
Vitamin K has little or no side effects.
Pregnant and breastfeeding women should consult their doctor before taking vitamin K supplements.
Those suffering from Glucose-6-phosphate dehydrogenase deficiency should invariably avoid the intake of vitamin K.

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