Omega-3 fatty acids: Duobao fish is a good source of Omega-3 fatty acids, which is very important for heart health and brain function. Bass also contains a certain amount of omega-3 fatty acids, which is lower than that of turbot. Duobao fish is a rich food in protein, which contains vitamin B 12, vitamin D, selenium, phosphorus and other important nutrients. Perch is also a food rich in protein, which is rich in phosphorus, vitamin B 12 and other nutrients.