Scientific dietary management after mitral valve replacement helps the recovery of the disease, dietary contraindications are high sodium, greasy, stimulating food, etc., to avoid overeating, limit the consumption of alcohol. 1. Avoid high sodium diet: if the sodium intake is too much, causing increased osmotic pressure of blood crystals, so that the posterior pituitary gland secretes antidiuretic hormone to enhance the reabsorption of water in the distal tubules of the kidney, which can contribute to the formation or aggravation of cardiogenic edema and increase the burden on the heart. 2. Avoid greasy diet: such as butter, cream, animal fat and other foods, which are rich in saturated fatty acids, can cause blood cholesterol rise. 3. Avoid stimulating food: such as chili peppers, vinegar, sauerkraut, etc., the consumption of such food can increase gastric acid secretion, while stimulating the gastric mucosa, easily induced peptic ulcer. 4. Others: Avoid overeating and excessive alcohol intake. After mitral valve replacement surgery, it is recommended that the diet should be light and moderate, should not eat too full, eat more milk, eggs, pork and other high-calorie, high-protein diet. If you are taking warfarin anticoagulation, review the INR (International Normalized Ratio) regularly and adjust the medication under the doctor’s guidance to maintain the INR within the range of 2 to 3.