Vitamin A Deficiency

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Vitamin A Deficiency

Hodge, C., & Taylor, C. (2021). Vitamin A Deficiency. StatPearls [Internet].

Vitamin A is a fat-soluble vitamin essential in cell development, metabolism, immune competency, vision, and reproductive functions. Vitamin A deficiency (VAD) is a highly prevalent health concern associated with substantial morbidity and mortality, mostly affecting young children in impoverished regions throughout the world. Insufficient intake of absorption leads to deficiency and compromise of essential physiologic processes. Natural sources of vitamin A include dark leafy greens, orange-colored vegetables, milk products, liver, and fish. It is absorbed in the duodenum after hydrolyzation by pancreatic and intestinal enzymes and emulsified with dietary fats and bile acids. The majority is then stored in the hepatic stellate cells. Significant amounts are also stored in adipose tissue and the pancreas.

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