What are the symptoms of Vitamin A deficiency?

Vitamin A deficiency is characterized by specific symptoms that correlate with the body's need for this essential nutrient, which plays a critical role in vision, immune function, and skin health. The symptoms associated with Vitamin A deficiency primarily include night blindness, damage to the cornea, and dry or cracked skin.

Night blindness occurs because Vitamin A is vital for the production of rhodopsin, a pigment necessary for vision in low-light conditions. A deficiency hampers the regeneration of this pigment, leading to difficulty seeing in dim lighting. Damage to the cornea can result from prolonged deficiency, as Vitamin A is crucial for maintaining the integrity of epithelial tissues, including those in the eyes. Additionally, dry or cracked skin can occur, as Vitamin A supports skin cell production and repair. Without adequate Vitamin A, the skin can become dry and less resilient.

Other symptoms associated with Vitamin A deficiency may also include an increased susceptibility to infections due to impaired immune function, but the core symptoms listed above are the most notable. Recognizing these signs can help in early diagnosis and intervention, highlighting the importance of adequate dietary intake of Vitamin A-rich foods.