Vitamin A mindmap

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  • Vitamin A
    • Functions
      • Normal Iron Metabolism
      • Maintenance of skin and vision
      • Normal function of immune system
      • Helps prevent some kinds of cancer and heart disease
      • Enhances immune response to invection
      • Help see in the dark
    • Forms
      • Retinol
      • Beta-Carotene
        • Antioxidant
    • Sources
      • Beta-Carotene
        • Orange and yellow fruit and vegetables
        • Plant source
      • Retinol
        • Liver, steak, beef, pork and lamb
        • Animal source
    • Excess
      • Fractured bones at old age
      • Can lead to pregnancy related still birth and miscarriage
      • Can damage the liver
      • Excess can be toxic to the body
    • Deficiency
      • Night Blindness
      • Liver and bone damage
      • The body can't synthesize rhodopisin
      • can cause xerophthalmia
    • Factors affecting bio-availability & absorption
      • Small amounts lost during frying
      • Oxidation during storage
      • Food protein techniques
  • Retinol
    • Liver, steak, beef, pork and lamb
    • Animal source

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