Question

Pellagra is caused by deficiency of vitamin

• A. $B_3$
• B. $B_5$
• C. $B_6$
• D. $B_2$

Answer 1

The correct option is A $B_3$

Pellagra is a disease caused by the vitamin defeciency. It is due to the defeciency of $B_3$ (niacin) in the diet. Pellagra is classically described by the three Ds, diarrhea, dermatitis, dementia.

A more comprehensive list of symptoms includes-

1. High sensitivity to sunlight
   
2. Aggression
   
3. Dermatitis, alopecia (hair loss), edema (swelling)
   
4. Smooth, beefy red glossitis (tongue inflammation)
   
5. Red skin lesions