More evidence is needed to rate vitamin A for these uses.

Choose at least one source of vitamin A every other day.

Too much vitamin A is also dangerous to one's health.

The use of vitamin A in treatment has been investigated.

Vitamin A is also needed for normal growth and good vision.

They may also have problems with memory, because vitamin A is important for the brain.

Vitamin A is also necessary for healthy growth of cells.

Too much vitamin A can lead to toxic side effects, however.

Before taking vitamin A, tell your doctor about all other medicines you use.

"I can give you some vitamin A that may help.

Vitamin A is important to keep your skin smooth and healthy.

Do not take vitamin A without your doctor's advice if you are pregnant.

Children with malaria have lower vitamin A levels than normal.

Diets low in vitamin A may also increase the risk of developing cancer.

It's not known whether taking vitamin A supplements has the same benefit.

Some women have low vitamin A reserves in their liver.

In other cases, certain medications, having too much vitamin A, or not getting enough protein can cause hair to fall out.

Ask your doctor about taking vitamin A if you are breast-feeding a baby.

Vitamin A may be given by mouth or with a shot (injection).

Vitamin A is likely safe for children when taken in the recommended amounts.

Do not take large amounts of vitamin A if you are taking antibiotics.

There was no vitamin A supplementation programme within the study area.

Having normal levels of vitamin A is key for good vision, strong immunity, and general health.

Alan's vitamin A levels fell by nearly 50 per cent in six weeks.

Check with your health care provider to see if you need to take vitamin A supplements.