Lack Of Vitamin A Leads To Which Disease
Introduction
Vitamin A is a vital nutrient required for maintaining healthy vision, skin, immune system, and overall growth and development of the body. It is a fat-soluble vitamin that is naturally present in some foods and can also be obtained from supplements. However, lack of vitamin A in the diet can lead to various diseases and health problems.
Night Blindness
Night blindness is one of the earliest symptoms of vitamin A deficiency. It is a condition in which a person finds it difficult to see in low light or darkness. This is because vitamin A is essential for the production of a pigment called rhodopsin, which enables the eyes to see in dim light.
Xerophthalmia
Xerophthalmia is a severe form of vitamin A deficiency that can lead to blindness if left untreated. It is characterized by dryness, thickening, and clouding of the cornea, which is the transparent outer covering of the eye. Xerophthalmia can also cause damage to the retina, leading to irreversible vision loss.
Immune System Weakness
Vitamin A is essential for maintaining a healthy immune system, which helps the body fight off infections and diseases. Lack of vitamin A can weaken the immune system, making the body more susceptible to infections, especially in children. This can lead to increased morbidity and mortality rates.
Respiratory Infections
Vitamin A deficiency is associated with an increased risk of respiratory infections, such as pneumonia and bronchitis. This is because vitamin A is essential for maintaining the health of the respiratory tract and the mucous membranes that line the nose, throat, and lungs. Lack of vitamin A can impair the immune response to respiratory infections, leading to more severe and prolonged illness.
Measles
Measles is a highly contagious viral disease that can cause severe complications, especially in children. Vitamin A deficiency is a risk factor for developing measles and can increase the severity and mortality of the disease. Supplementation with high doses of vitamin A has been shown to reduce the risk of complications and death in children with measles.
Conclusion
Vitamin A is an essential nutrient required for maintaining optimal health and preventing various diseases and health problems. Lack of vitamin A in the diet can lead to night blindness, xerophthalmia, immune system weakness, respiratory infections, and measles. It is important to include vitamin A-rich foods in the diet or take supplements if necessary to ensure adequate intake of this vital nutrient.