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Vitamin A : deficiency, food sources and functions




vitamin A is one of the fat soluble vitamin, has vital functions in body. vitamin A is related to retinoid group and beta carotene is converted into vitamin a in body.

vitamin A deficiency leads to night blindness

functions of vitamin A :-
vitamin A has number of vital functions in the body.

  • helps in vision
  • gene transcription
  • maintains healthy skin
  • supports immunity
  • beneficial in embryonic development and reproduction
  • reduces risk of cardiac diseases and cancer.
  • acts as antioxidant in body.

food sources of vitamin A:-

  • liver
  • carrot
  • papaya
  • sweet potato
  • yellow fruits
  • fish liver oil
  • butter, cheese,
  • spinach and
  • green leaf vegetables are main sources of vitamin A.

recommended daily allowance of vitamin A: 600 to 800 micro grams.




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