ABSTRACT
Vitamin A is a lipid-soluble compound along with several biologic actions to assist regarding vision and cellular differentiation. The prevalence of vitamin A deficiency is rarely observed in the first world, nutrient-rich countries; Whatever it may be, it can influence those with inflammatory bowel disease and post-bariatric surgery. Immune system, dermatological, and ophthalmological problems might arise from a vitamin A deficit. This activity explains about the difficulties of vitamin A deficiency and how to treat affected patients.