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: Pharmacology
[{'content': 'Which of the following characterizes Atkins diet? \nSelect and explain. \nA. Severly reduced fat content, B. Severly reduced carbohydrate content, C. Severly reduced protein content, D. Reduced mineral content', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Recent data suggests that very low carbohydrate "Atkins" style diets are more effective for short-term weight loss when compared with standard caloric restriction. However, these diets have not been shown to be effective in maintaining weight loss.', 'role': 'assistant'}]