Which vitamin deficiency causes night blindness and xerophthalmia in human beings?

💡 Solution & Explanation

Vitamin A retinol is an essential fat-soluble nutrient required for the formation of rhodopsin pigment in retinal rod cells, and its deficiency leads to night blindness and dryness of the cornea known as xerophthalmia. Vitamin B1 deficiency causes beriberi, Vitamin C deficiency causes scurvy, and Vitamin E deficiency affects reproductive health. Carrots and leafy greens are rich sources of provitamin A carotenoids.