Vitamin K

Vitamin K is a fat-soluble vitamin.  Fat-soluble vitamins can be stored in the body for months and even years.  They are stored in the liver and do not need to be eaten in large amounts.

 

Function:

  • Making blood clots.
  • Maintaining bone health.

 

Sources:

  • Cereals.
  • Green leafy vegetables, e.g. green peas, beans, broccoli and spinach.
  • Vegetable oils.

 

Deficiency:

Deficiency is rare as it is made by the body.  Signs of deficiency include easy bruising and bleeding.  The blood may take longer to clot.

 

Excess:

There is not enough evidence to draw conclusions on possible effects of taking too much vitamin K.

 

Dietary Reference Value (DRV):

  • Teenagers: 0.045mg
  • Males: 0.075mg
  • Females: 0.065mg

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