Vitamin A
One of the first symptoms of deficiency is night blindness due to lack of visual purple. Prolonged deficiency leads to xerophthalmia, a condition in which eyes become dry, ulcers appear on the cornea, the eyelids become swollen and sticky, and which eventually leads to blindness.


Vitamin A
Thiamnin
Those at greatest risk of deficiency include some young children and teenagers, stressed adults, those who exercise very heavily, alcoholics, pregnant women, those on fad diets and people suffering from malabsorption diseases.



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Vitamin C

The main role of vitamin C is in the manufacture of collagen. This protein forms the basis of connective tissue, the most abundant tissue in the body, and acts as a cementing substance between cells. Vitamin C is important in the synthesis of adrenal hormones.

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Biotin
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Biotin is essential for cell growth and replication through its role in the manufacture of DNA and RNA, which make up the genetic material of the cell.

Biotin
Folate
Folic acid is essential for the synthesis of DNA and RNA, the genetic material of cells. It plays a vital role in the growth and reproduction of all body cells, maintaining the genetic code, regulating cell division and transferring inherited characteristics from one cell to another.Vitamin A read more


Vitamins: Vitamin D Absorption

Exposure to sunlight in spring, summer and autumn usually makes up for any shortfall in dietary vitamin D and even brief exposure to sunlight during these times is adequate. There may, however, be problems in winter months in some climates.

Allergy read more