Grilled fish fillets have some adverse effects on blood sugar, patients with high blood sugar can occasionally eat less grilled fish fillets appropriately, not more, and regularly monitor blood sugar changes. Patients with high blood sugar should eat a light diet, control the intake of sugar, do not eat more sugar products, fried barbecue food, spicy food. Patients with high blood glucose can occasionally eat less grilled fish fillets appropriately, do not eat more. Pay attention to monitor the changes of blood glucose and reduce the amount of food when the blood glucose level is too high. Healthy cooking methods such as steaming and boiling soup are recommended for fish food, and pickling, barbecuing and smoking should be avoided as much as possible. Patients with high blood glucose should pay attention to dietary control, and consult your physician or dietitian for details on specific dietary combinations.