What to eat after heart surgery is determined according to the way of surgery. If it is an interventional minimally invasive surgery, there is no special attention, and a reasonable diet according to the original disease is sufficient. If it is open heart surgery, it is necessary to enhance nutrition appropriately and eat high-quality protein to promote tissue repair. After minimally invasive interventional surgery: mainly a reasonable diet is adopted according to the primary disease. The diet should be light and easy to digest; since hypertension, high blood pressure and high blood sugar are the main risk factors of coronary heart disease, the diet of patients with coronary heart disease should be low in salt, fat and sugar, and the intake of foods rich in dietary fiber and vitamins should be increased. Diabetic patients, on the other hand, need to adjust their diet according to their blood sugar. After open-heart surgery: Open-heart surgery involves entering the chest cavity, which damages the patient’s body tissues, so after the surgery, you need to eat a moderate amount of high-quality protein to promote tissue recovery. High-quality protein is animal protein, such as pork, beef, chicken, fish, eggs, milk, etc. However, it is also necessary to consider the primary disease. In case of coronary heart surgery, the diet requires moderate intake of milk, eggs and fish, and the cooking methods are mainly stewing and steaming. You should not consume ginseng type and blood-stasis activating drugs or foods after heart surgery to avoid bleeding of damaged tissues. In conclusion, the diet after heart surgery should take into account the mode of surgery and the condition of the primary disease.