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Vitamin A for Healthy Immune System

 By Raisa Weisspapir 

Signs of Vitamin A deficiency:

  • Repeated colds, sinus infections, pneumonia, bronchitis, ear infections

  • Rough dry prematurely aged and wrinkled skin

  • Insomnia

  • Loss of smell

  • Allergies

  • Dandruff

  • Night blindness

  • Eye inflammation

  • Dryness of the mucous membranes of the mouth, respiratory and reproductive systems


The Recommended Dietary Allowance of vitamin A is 4,000-5,000 I.U. daily for adults and 1,500- 4,000 for children.

Food Sources of Vitamin A: according to Paul Pitchford

In International Units

100-gram (3 ½ - ounce) Samples


Green onions 5,000 

Spirulina 250,000 

Watercress 4,900 

Wild blue-green 70,000 

Winter squash 4,200

Wheat/Barley grass 66,000 

Collard 3,300 

Chlorella 55,000

 Swiss chard 3,300

 Carrot 28,000

 Chinese cabbage 3,300 

Sweet potato 26,000 

Apricot 2,700 

Kale 8,900

Romaine lettuce 2,600 

Parsley8,500 Persimmon 1,800 

Spinach 8,100 

Cantaloupe 1,800

Turnip green 7,600

Peach 400 

Beet green 6,100    

Here are some herbs containing Vitamin A:

Alfalfa, borage leaves, burdock root, chickweed, rose, hips, nettle, raspberry leaf.

Factors that interfere with the absorption of Vitamin A are:

Antibiotics, laxatives, and some cholesterol-lowering drugs.

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