1.Binge drinking and overeating are strictly prohibited. When the stomach is full of food, in order to facilitate digestion and absorption, a large amount of blood distribution in the gastrointestinal tract, resulting in a relative decrease in blood supply to other tissues, peripheral blood pressure has decreased. When the blood pressure drops suddenly and obviously, it can cause insufficient blood supply to the coronary arteries, and then patients with coronary heart disease are prone to angina pectoris or myocardial infarction and heart failure. Therefore, the diet should be moderate, once only eat 80% full, especially dinner should not be too full. 2. Properly control the total calorie intake of food to reduce the burden on the heart. Low-calorie meals should be the main focus. In milder cases, attention should also be paid to controlling diet, otherwise it will cause obesity, hyperlipidemia, etc., which are risk factors for inducing hypertension and coronary heart disease. Control of caloric intake is mainly to limit animal fats. Higher cholesterol and sugar-rich food; can eat vegetable oil, freshwater fish, chicken. 3, must not eat too much salt, too much salt, the body tissue will accumulate too much fluid from meat and soy products; can eat more things that can lower cholesterol, such as garlic, onions, mushrooms, kelp and other things that increase the blood volume and increase the burden on the heart. For patients with hypertension, edema or heart failure, it is best not to exceed 2~3 grams of salt per day. 4. Patients taking diuretics should pay attention to potassium supplementation. Eat fresh vegetables and fruits, such as orange, celery, leek, bamboo shoots, bean sprouts, bananas, apples, orange juice, etc. The vitamin B1 and vitamin C contained in them can protect the heart muscle. 5, avoid smoking, alcohol, eat less spicy products. Because the nicotine in the smoke can cause blood vessel spasm, blood pressure, heart rate increases and induce angina. Food should be easy to digest and avoid gastrointestinal irritation.