This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Iron deficiency anemia, Subject name: Pathology
[{'content': 'Iron absorption is increased by which of the following? \nSelect and explain. \nA. Phytates, B. Tannates, C. Plant foods, D. Ascorbic acid', 'role': 'user'}, {'content': 'Answer: D \nExplanation: - Site of iron absorption - duodenum and upper jejunum (proximal small intestine). - Iron absorption is increased by Acids Ascorbic acid (Vitamin C), citric acid Amino acids containing SH-group Sugars in the diet - Phytates, Tannates (found in tea), tetracyclines & Plant foods (non-heme iron) decreases iron absorption', 'role': 'assistant'}]