Which of the following disease affects the skin?

A. Pellagra
B. Scurvy
C. Rickets
D. Dermotidus

Show Answer
A. Pellagra

Explanation: Pellagra is a disease caused by a lack of the vitamin niacin (vitamin B3). Symptoms include inflamed skin, diarrhea, dementia, and sores in the mouth. Areas of the skin exposed to either sunlight or friction are typically affected first.

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