Symptoms of vitamin deficiency (a) which are more widespread malnutrition in the world. Namely:
** Difficulty of vision in the darkness, a so-called night blindness.
** Paired eye Ulcer This may lead to the loss of view and to total blindness.
** Inflammation of the mucous membranes of the nose.
** Dry skin in the arms and thighs.
** Weakness of the body's resistance to certain diseases.
** Poor appetite to eat.
These symptoms frequently see in the poor and people in developing countries because of their dependence P fed on cereals and pulses poor in this vitamin and not eating animal foods rich because of high prices, as well as the adverse effects caused by lack of vitamin A.
There are also serious effects result from eating large amounts of it, this vitamin dissolves in fat and Dissolves in water and is therefore not Poses with urine but stored body in the liver and the lungs, heart and under the skin, making skin who eat it daily needs skins smooth soft vibrant but Increase have limits beyond which a toxic substance Not borne body and often see symptoms of poisoning in this vitamin to children who eat large amounts of oil fish or cod liver and symptoms begin loss of appetite, nausea, and then followed by a headache and feeling the need for vomiting and diarrhea as associated irritable.
The food of animal origin are rich in vitamin A, such as: heart, bone, liver, fish oil, butter, eggs, milk, cheese, cream.
While liver in our body is able to manufacture this vitamin from plant material is available in abundance in green leafy vegetables and fruits called carotene or retinol alternative they abound in mallow, lettuce, green peppers, carrots, potatoes.
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vitamins