The etiology of coronary heart disease is still not completely understood, and it is mostly thought to be related to the disorder of lipid metabolism in the body. Among the risk factors of coronary heart disease, the most important ones are hypertension, hypercholesterolemia and smoking; followed by obesity, diabetes and psychoneurological factors; there are also some factors that cannot be changed, such as family genetic history, age, gender male, etc. From the above factors, the onset of coronary heart disease is directly or indirectly related to dietary and nutritional factors, so pay attention to reasonable nutrition is one of the important measures to prevent and treat coronary heart disease. First, dietary principles 1, control calories, maintain the ideal weight. 2, control the quality and quantity of fat intake. Many studies have proved that long-term consumption of large amounts of fat is the main factor causing atherosclerosis in animals. And also proved that the quality of fat has a greater impact on blood lipids, saturated fatty acids can raise blood cholesterol, polyunsaturated fatty acids can lower blood cholesterol, it is generally believed that the ratio of polyunsaturated fatty acids, saturated fatty acids, monounsaturated fatty acids in the diet p:s:m, to 1:1:1 is appropriate. Dietary cholesterol content will have a certain impact on the body’s lipid metabolism, and should be properly controlled. 3, control the intake of sugar. Carbohydrate is the body’s main source of caloric energy, carbohydrate intake is too much in our people’s dietary structure is too much staple food, can cause heat into the super, the same can be converted into fat in the body, causing obesity, and make the blood lipids rise. Studies have proved that the role of carbohydrates in raising blood lipids, fructose is higher than sucrose, sucrose is higher than starch. The United States, Canada and other countries, people’s sugar consumption can account for 15-20% of a day’s caloric energy, the incidence of coronary heart disease is much higher than in other countries and regions. Therefore, the total carbohydrate intake should be strictly controlled, especially the sugar intake, generally not more than 10% of the total calories is appropriate. 4, appropriate to increase the intake of dietary fiber. Dietary fiber can adsorb cholesterol, prevent cholesterol from being absorbed by the body, and promote the discharge of bile acid from the feces to reduce the production of cholesterol in the body, so it can lower blood cholesterol. Therefore, in the prevention and treatment of coronary heart disease diet, there should be sufficient dietary fiber. 5.Provide rich vitamins. Vitamin C can promote the generation of cholesterol bile acid, which can lower blood cholesterol; it can also improve coronary circulation and protect the blood vessel wall. Nolic acid can expand the peripheral blood vessels, prevent thrombosis; can also reduce the level of triglycerides in the blood. Vitamin E has antioxidant effect, can prevent unsaturated fatty acid peroxidation, protect the heart muscle and improve myocardial hypoxia, prevent thrombosis. 6, to ensure the supply of essential inorganic salts and trace elements. Iodine can inhibit the absorption of cholesterol by the intestinal tract and reduce the deposition of cholesterol on the walls of blood vessels, so it can slow down or stop the development of atherosclerosis, and frequent consumption of seafood rich in iodine such as kelp and seaweed can reduce the incidence of coronary heart disease. Dietary calcium, magnesium, potassium, sodium, copper, chromium, etc. are also related to the development of coronary heart disease. 7, a small number of meals, do not overeat, dinner should not eat too much, otherwise easy to induce acute myocardial infarction. 8, forbidden to drink strong alcohol. Alcohol can accelerate the heart rate, can aggravate myocardial hypoxia, so alcohol should be prohibited. Second, recipe examples Breakfast: roll flour 50 grams, soybean flour 20 grams, cornmeal paste porridge cornmeal 30 grams, choked celery celery 50 grams, peanuts 20 grams, tea eggs 1 egg 60 grams, lunch: rice rice 100 grams, shredded meat noodles 50 grams, lean pork 10 grams, fungus 10 grams, tomatoes scrambled eggs tomatoes 150 grams, eggs 50 grams, braised chub chub 100 grams, dinner Lasagna flour 50g, mung bean rice 30g, mung bean 20g, stir-fried rape 150g, shredded bean curd 100g, cooking oil 15g. Total daily caloric energy 8387 kJ 1997 kcal, or so. Third, the main points of food selection 1, control the intake of staple foods and fat, the main points of the same as hypertension. 2, to ensure the supply of fresh vegetables and fruits to provide vitamin C, B vitamins and appropriate amount of dietary fiber. 3, should use more beans and soy products, so as to ensure the supply of high-quality protein, but also to provide essential fatty acids, to avoid excessive intake of animal foods saturated fatty acids and cholesterol, and soybeans and other also contains lecithin and inorganic salts, beneficial to the prevention and treatment of coronary heart disease. 4, appropriate to increase seafood, such as kelp, nori, jellyfish, etc., in order to provide the body with rich iodine. 5, can use more aquatic fish, because of its excellent protein, easy to digest and absorb, and lipid regulation, compared with animal meat food is more suitable for the characteristics of the elderly, for the prevention and treatment of coronary heart disease. 6, can use more winter melon, radish, honey, hawthorn and other foods. 7, minimize the use of animal liver, brain, kidney, caviar, squid, pineal eggs and other foods containing high cholesterol and foods containing high saturated fatty acids, such as fatty meat, animal fat, butter, cream, etc.