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: Physiology
[{'content': 'Iron absorption is increased by all except ? \nSelect and explain. \nA. High vitamin C in diet, B. High phosphates in diet, C. Ferrous form, D. Acidity', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., High phosphates in diet", 'role': 'assistant'}]