Other common tonics are perch soup to help recovery after an operation, and pig's brain soup to boost the mental powers of schoolchildren burning the midnight oil.
此外，開刀吃鱸魚湯，幫助傷口癒合，為熬夜 K 書的孩子燉碗白花花的豬腦來「補腦」，也都是常見的補法。