Answer :
Vitamin a plays an important role in promoting keratinization.
What is Vitamin A?
An necessary nutrient for people, vitamin A is fat-soluble. Retinol, retinal, retinoic acid, and a number of provitamin A carotenoids make up this group of chemical substances. One of vitamin A's many roles is in vision, in which it interacts with the protein opsin to generate rhodopsin, the light-absorbing molecule required for both color vision and low-light (scotopic vision), as well as for embryonic development and growth.
Vitamin A insufficiency is widespread in poor nations, particularly in Southeast Asia and Sub-Saharan Africa. Although deficiencies can happen at any age, they are particularly common in young children and pregnant women because they need to pass retinol to the baby.
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