High cholesterol and high blood sugar can eat fish, but we should pay attention to moderate consumption, prefer to choose steamed and other healthy cooking methods, avoid too greasy or spicy stimulation. Patients with high cholesterol and high blood sugar need to control their daily diets, avoiding high-fat and high-sugar foods, eating smaller meals, and taking a light diet that is low in salt, oil, and carbohydrates. Fish itself is not rich in fat and sugar, and is rich in protein, vitamins, minerals and other nutrients, can be eaten appropriately. Eat fish should pay attention to cooking methods, avoid spicy, deep-fried, fried, barbecue, marinated, etc., you can choose to steam, boiled soup and other light methods. Cholesterol, high blood sugar, need to consult a doctor in time to observe, under the guidance of clinicians for standardized treatment.