Vitamin A deficiency symptoms

Vitamin A is essentially benefits for the skin, hair, nails, and vision. It helps the immune system work better, helps fight infections and speeds up healing. Vitamin A also shields the skin from the harmful effects of the sun’s UV rays and protects the membranes of brain cells, which have lots of fat and thus are readily damaged by free radicals.
Both beta-carotene and vitamin A each have their own specific antioxidant properties.
A recent study by the Salk Institute for Biological Studies indicates vitamin A may be an important factor in memory and learning.
Beta-carotene appears to prevent lung cancer and tumors of the mouth and throat, and recent research has shown that it may protect against memory loss and other forms of cognitive impairment.

Deficiency of vitamin A is rather rare, as the liver can store enough for months or even years before it is depleted, even if none is consumed in the diet.

Vitamin A deficiency can result in dry skin, eyes, and mucous membranes, loss of vitamin C, impaired night vision, degeneration of tooth enamel and gums. Also can be problem with bone growth, sinus trouble, loss of smell, and increased susceptibility to infections.

If you feel the symptoms you should urgently consult a doctor – Ask a Doctor Online

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Vitamin A overdose symptoms

Taking supplements that contain the RDA for Vitamin A is generally safe for everyone, but use caution. Vitamin A in large doses can be toxic, causing a condition called hypervitaminosis A.

Symptoms of Vitamin A overdose include blurred vision, bone pain, headaches, diarrhea, loss of appetite, skin scaling and peeling, and muscular weakness. Vitamin A toxicity doesn’t usually occur until you’ve been taking really large doses (more than 25,000 IU daily) for a long time, but don’t take any chances—stick to the RDA.

Babies and children can reach toxic Vitamin A levels at much smaller doses. Most multivitamin supplements contain only the RDA, but some contain 10,000 IU (2,000 RE) or even more.

Read labels carefully and talk to your doctor before giving vitamins to babies and children.

Fortunately, most symptoms of Vitamin A toxicity gradually go away without lasting damage when you stop taking it.

Be very careful about Vitamin A supplements if you are or might become pregnant. Too much Vitamin A (over 5,000 IU or 1,000 RE) can cause birth defects, especially if taken in the first seven weeks of pregnancy—when you might not even realize you’re pregnant.

Today many doctors suggest that women of childbearing age take beta carotene instead of Vitamin A supplements.

Symptoms of Vitamin A overdose

Adult and children symptoms of overdose of Vitamin A are differing. Children can feel appetite loss, bone pain, bulging fontanel, irritability, Lethargy, stunted growth.
Vitamins A overdose symptoms for adult include:

appetite loss, blurred vision, diarrhea, drowsiness, hair loss, headaches, irribility, lethargy, muscle weakness, skin scaling and peeling, vomiting.
So it is important to understand that 60,000 IU of vitamin A given for long periods of time could lead to vitamin A toxicity, but generally this would only occur if doses in excess of 50,000 IU were used for several years.

Smaller doses may produce toxicity symptoms if there are problems in storage and transport of vitamin A.

These problems are generally found only in people with cirrhosis of the liver, hepatitis, or malnutrition and in children and adolescents. However, for a period of only one month, as in this study, vitamin A toxicity is of virtually no concern.

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