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Vitamin A
(retinol) plays an important role in the functioning of the retina, growth and maturation of the cells, lining the inner and outer surfaces of the body (the epithelial cells), growth of bone, reproduction and embryonic development.
Vitamin A deficiency causes night blindness, a condition in which vision is impaired in dim light, dryness and ulceration of the eyes, skin eruptions and dryness, abnormal cells of the mucous membranes, urinary stones, and impaired taste and smell. |