Deficiency of Niacin is Caused Due to the Deficiency of ————-? HomeVitamins MCQsDeficiency of Niacin is Caused Due to the Deficiency of ————-? Q. Deficiency of Niacin is Caused Due to the Deficiency of ————-? A. Scurvy B. Rickets C. Pernicious anaemia D. Pellagra Answer: Pellagra