This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Non communicable diseases, Subject name: Social & Preventive Medicine
[{'content': 'Primary prevention of obesity - \nSelect and explain. \nA. Low fiber diet, B. High fiber diet, C. High cholesterol diet, D. High intake of protein', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Fiber content in the diet should be increased through the consumption of common unrefined food, it decreases the absorption of carbohydrate . Ref-Park&;s textbook of Preventive and Social Medicine 24th edition. .', 'role': 'assistant'}]