Deficiency of which of the following vitamins causes pellagra?

Correct option is B

The correct answer is: (b) B3
Explanation:
· Pellagra is caused by a deficiency of Vitamin B3 (Niacin) or its precursor tryptophan.
· Symptoms include the 3 D’s: Dermatitis, Diarrhea, and Dementia.
· Common in populations with maize-based diets lacking proper protein.
Information Booster:
· Vitamin B3 is essential for energy metabolism and nerve function.
· Found in foods like meat, fish, nuts, and whole grains.
· Pellagra is rare today but was historically common in poor regions.
· Can also result from alcoholism or absorption disorders.
· Nicotinamide is the medicinal form used in treatment.
Additional Knowledge:
· B1 (Thiamine): Deficiency causes beriberi.
· D: Deficiency leads to rickets (children) or osteomalacia (adults).
· A: Deficiency causes night blindness and xerophthalmia.