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Answers
Vitamin A
a) Source of food
Cod liver oil.
Eggs.
Fortified breakfast cereals.
Fortified skim milk.
Orange and yellow vegetables
b) Functions in the body
Helps form and maintain healthy teeth, skeletal and soft tissue, mucus membranes, and skin.
c) Deficiency disease
Night blindness
d) Symptoms
The sole symptom of night blindness is difficulty seeing in the dark.
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Vitamin D
a) Source of food
Oily fish – such as salmon, sardines, herring and mackerel.
red meat.
liver.
egg yolks.
Sunlight
b) Functions in body
Helps build bones and keep bones strong and healthy.
c) Deficiency disease
Rickets
d) Symptoms
Symptoms include delayed growth, bow legs, weakness and pain in the spine, pelvis and legs.
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