What Causes of Vitamin A Deficiencies

Vitamin A insufficiencies are seldom encountered in the United States, but are more common in undernourished toddlers, and once there is a deficiency of this vitamin it may result in blindness. In the United States the most widely recognized cause of vitamin A deficiency is linked with individuals with dietary restrictions or individuals that have an excess alcohol intake.

The beginning signs of vitamin deficiency is night blindness, and this also leads to blindness by drying out the cornea and causing damage to the retina. There are also symptoms when there is a deficiency of Vitamin A, this could be chance of acquiring respiratory infections and diarrheal infections. Those at risk for vitamin A deficiencies are toddlers and young kids,kids and adults that are living at the poverty level, children that have diseases of the pancreas, liver, intestines or that have inadequate fat digestion absorption.