This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition, Subject name: Medicine
[{'content': 'The principal polypeptide that increases food intake are the following except . \nSelect and explain. \nA. Neuropeptides-Y, B. Leptin, C. Orexin -A, D. B-Endorphins', 'role': 'user'}, {'content': 'Answer: B \nExplanation: *All the above except leptin increases appetite . Leptin decreses appetite . <img src=" /> Image ref - Harrison internal medicine 20e p2839', 'role': 'assistant'}]