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Question

Biology Question on Digestion and absorption

Pellagra is caused due to deficiency of

A

niacin

B

pantothenic acid

C

tocopherol

D

cyanocobalamine

Answer

niacin

Explanation

Solution

Pellagra is a vitamin deficiency disease most commonly caused by a chronic lack of niacin (vitamin-B3B_3) in the diet. It may also result from alternations in protein metabolism in disorders such as carcinoid syndrome. A deficiency of the amino acid lysin can lead to a deficiency of niacin as well.