Alternative Names & Classifications:
Hypovitaminosis A (CLINICAL), Hypovitaminosis E (CLINICAL), Vitamin K Deficiency Bleeding (CLINICAL)
Description
Vitamin A is an essential fat-soluble vitamin required for maintaining clear vision, gene transcription, and a healthy immune system. Deficiency is a leading cause of preventable childhood blindness worldwide, particularly in developing nations lacking fortified foods. Without it, the specialized tissues of the eye and mucosal barriers begin to break down.