HEALTHY CHILD 3
Essential for vision in dim light; necessary for maintenance of mucous membranes; skin and growth.
Reduced night vision; loss of sight through gradual damage to the cornea. Lowered resistance to infection.
Promotes calcium and phosphate absorption from food and is thus essential for bones and teeth.
Failure of bones to grow and calcify leading to rickets in children and osteomalacia in adults.
Protects cell membranes from damage by oxidation.
Deficiency may occur in premature infants or due to malabsorption.