Wednesday, July 18, 2018

Signs and symptoms of vitamin A deficiency

Vitamin A deficiency is a nutritional deficiency of high magnitude that can be caused by insufficient intake of vitamin A food sources or by vitamin absorption, transport, or metabolism problems.

Vitamin A deficiency is a common form of micronutrient malnutrition affecting 21.1% of preschool-age children and 5.6% of pregnant women worldwide. The available evidence suggests that nearly 800 000 deaths worldwide can be attributed to vitamin A deficiency among women and children.

Vitamin A is an essential nutrient required for maintaining immune function, eye health, vision, growth and survival in human beings. Severe vitamin A deficiency can be identified by the presence of the classical eye signs of xerophthalmia in individuals.

Xerophthalmia remains the leading known cause of preventable blindness in young children . Corneal xerosis, ulceration, and necrosis (keratomalacia) are the result of severe vitamin A deficiency, often precipitated by severe infection such as measles in the presence of wasting malnutrition.

Other health Consequences of vitamin A deficiency including:
•Corneal blindness and disability
•Stunted growth
•Impaired immunity
•Increased severity of infection (eg,measles, diarrhea, or malaria)

Lack of vitamin A – essential for the functioning of the immune system – can lead to irreversible blindness.
Signs and symptoms of vitamin A deficiency

Most Popular Articles

Articles around the world

  • Food quality issues are closely related to food safety in practice because both are managed throughout the production process. Quality and safety perceptio...
  • There is a history that in late eighteenth century, the largest port in Europe was in Germany. Sailors who visited port brought special food called “Hambur...
  • The color, flavor, texture, and the nutritional value of fresh-cut fruit and vegetable products are factors critical to consumer acceptance and the success...

SAF-DYNAMICS of Food Science and Technology

Feed from World of Nutrition