Patients with high creatinine can eat fish, but try not to eat sea fish. If creatinine grows above 350 μmol/L, you can’t eat too much fish at this time. For patients with elevated creatinine, the usual sense is to give a low-protein diet, a low-protein diet also requires that with a high-quality protein diet, fish is considered a high-quality protein diet, so patients with high creatinine can eat. Try not to let the patient eat sea fish, because sea fish often high purine content, eat too much sea fish may lead to patients with hyperuricemia. If the patient’s creatinine rises to a certain degree, then not only requires a low protein diet, even requires a very low protein diet, although the fish is a high-quality protein, but also can not eat too much. Because after eating too much, it will also increase the patient’s protein load, and even cause the patient to have elevated uric acid, elevated urea nitrogen, etc., which is not favorable to the treatment.