A member asked:

What's reason behind deficiency of vitamin a?

A doctor has provided 1 answer

Several: There are several causes of vitamin A deficiency including inadequate intake or alcohol consumption or iron deficiency. This is a common problem affecting about 1/3 of kids worldwide under age 5 and can cause blindness. It is generally lacking in the diet of millions and the younger the child affected, the worse the effects can be. Adding foods with vitamin A or supplements are very helpful.

Answered 8/10/2014

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What could having a vitamin deficiency cause?

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