Vitamin K (Naphthaquinone)...

 Vitamin K (Naphthaquinone)

• Vitamin K plays a key role in helping the blood clot, preventing excessive bleeding. Unlike many other vitamins, vitamin K is not typically used as a dietary supplement. 
• Vitamin K is actually a group of compounds. The most important of these compounds appears to be vitamin K1 and vitamin K2. 
• Vitamin K1 is obtained from leafy greens and some other vegetables. Vitamin K2 is a group of compounds largely obtained from meats, cheeses, and eggs, and synthesized by bacteria. 
• Vitamin K1 is the main form of vitamin K supplement available in the U.S.
• Uses of vitamin K for cancer, for the symptoms of morning sickness, for the removal of spider veins, and for other conditions are unproven. Learn more about vitamins k2 and d3 as well as which foods pack the highest amount.

1)Daily Requirment 

• 20 - 100 mg

2) Sources 

•  cow's milk
• fish
• leafy
• vegetables
• oils
• liver
• pork
• Vegetables like spinach, asparagus, and 
• broccoli Legumes like soybeans

3) Functions

• Helps in blood clotting 
• Helps in formation of blood clotting factors II,VI,IX and X

4) Effects of Deficiency

• Slow blood clotting 
• Low levels of vitamin K can raise the risk of uncontrolled bleeding. While vitamin K deficiencies are rare in adults, they are very common in newborn infants. A single injection of vitamin K for newborns is standard. Vitamin K is also used to counteract an overdose of the blood thinner Coumadin.
• 
  
• Cutaneous and intramuscular hemorrhage (Hemorrhage in newborn)