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
[{'content': 'Niacin deficiency in a maize-eating population is due to- \nSelect and explain. \nA. High Tryptophan, B. High lsoleucine, C. High leucine, D. High Phenylalanine', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., High Leucine Excess of Leucine interferes in conversion of Tryptophan into Niacin, and aggravates the pallagrogenic action of inake.", 'role': 'assistant'}]