This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
Pellagra in jowar eating population is due to ? 
Select and explain. 
A. Niacin in bound form, B. Deficiency of tryptophan, C. Excess of leucine, D. High consumption of milk and milk products
C: Excess of leucine
Answer: C: Excess of leucine 
Explanation: Ans. is 'c' i.e., Excess of leucine