People living in impoverished regions, as well as people with alcohol addiction, frequently have a niacin deficiency called

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Quizplus · Accepted Answer

Pellagra is a niacin deficiency and is commonly seen in people living in impoverished regions who rely on a diet of mostly maize. Alcoholics are also at risk for developing pellagra due to impaired absorption of nutrients, including niacin. Beriberi is a thiamin deficiency, kwashiorkor is a protein deficiency, scurvy is a vitamin C deficiency, and rickets is a vitamin D deficiency.

People Living in Impoverished Regions, as Well as People with Alcohol