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': 'All of the following are required more during lactation as compared to pregnancy, except ? \nSelect and explain. \nA. Iron, B. Vitamin A, C. Niacin, D. Energy', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Iron Required more during lactation as compared to pregnancy : Energy, Vitamin A, thiamin, riboflavin, Vitamin C, niacin, and Vitamin B12. Required more during pregnancy : Iron, protein, and folate. Same requirment in pregnancy and lactation : Fat, calcium, zinc, magnesium, and vitamin B6.", 'role': 'assistant'}]