Reduce the intake of saturated fatty acids and increase the intake of polyunsaturated fatty acids. The former is rich in animal fat, while the latter is rich in vegetable oil, which has the function of lowering cholesterol. Rapeseed oil, soybean oil, peanut oil, sesame oil, corn oil and sunflower oil are all rich in unsaturated fatty acids. Animal fats, such as fat, lard and dairy products (whole milk, cream and cheese), are rich in saturated fatty acids.

1.3 properly limit cholesterol. The daily intake of cholesterol from food should be less than 300 mg (300 mg of cholesterol is equivalent to 2 Liang of fat meat, or 4 Liang of lean meat, or 1 egg), and hypercholesterolemia should be less than 200 mg.

Eating more coarse grains, vegetables and fruits contains more dietary fiber, vitamins and beneficial trace elements than refined white grain. Melon and fruit foods are rich in vitamins, inorganic salts and so on. It also contains pectin, which can reduce blood fat. Therefore, patients with coronary heart disease can appropriately increase such foods in their diet.

Often eat foods that reduce blood fat, such as mushrooms, garlic, beans, kidney beans, edamame, soybeans, adzuki beans, mussels, walnuts, green onions, scallops, prawns, turtles, peas, peanuts, fungus, onions, kelp, laver, broad beans and so on. Human experiments have proved that they can reduce blood fat.

Other patients with arrhythmia must quit smoking, drink strong tea carefully and ban coffee.