Vitamin A


  • Chemical name :

  • Retinol, retinal, and four carotenoids including beta carotene.
  • Solubility:

  • Vitamin A is a fat soluble vitamin. 

  • Deficiency disease:

    Vitamin A deficiency will lead to Night blindness, hyperkeratosis, and keratomalacia.

  • Upper intake level:

  • 3,000 µg

Overdose disease:

Hypervitaminosis A

Food source:

Liver, orange, ripe yellow fruits, leafy vegetables, carrots, pumpkin, squash, spinach, fish, soya milk, milk.



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Jon K. Abrahamson, M.D., practices general pediatrics with Cleveland Clinic Community Pediatrics,