Vitamin A is needed for:

1. Healthy skin and tissues, and the outer layer of your
   organs.
   
2. The mucus membranes of the lungs, nose throat, and
   mouth.
   
3. Resistance to respiratory infections.
   
4. A healthy immune system - can shorten recovery time
   from diseases.
   
5. Healthy moist eyes and vision/night vision.
   
6. The formation of blood, bones, teeth, gums and hair.
   
7. Promote growth.
   
8. Treatment of emphysema, hyperthyroidism, and removal
   of age spots.
   
9. Externally applied: helps acne, impetigo, boils,
   carbuncles and open ulcers.
   
10. Regulation of cell growth preventing tumours.
    
11. Protecting cells against free radical damage
    through action as an antioxidant.
    
12. Ensuring mucus membrane integrity.
    
13. Synergy with vitamin C and E.
    
14. Cell differentiation.
    
15. Good night vision through synthesis of visual purple
    by the retina.
    

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