The main cause of myocardial ischemia is the narrowing of blood vessel lumen due to poor dietary habits, so that the heart muscle cannot get enough blood to nourish and the symptoms of precordial pain, chest tightness and shortness of breath appear. The general principle of diet is low salt and low fat diet, increase the intake of vitamins and fiber. Patients with myocardial ischemia can eat any vegetables, such as eggplant, potatoes, tomatoes, etc. all belong to low salt and low fat diet, and eating more onions can lower blood lipids and delay the process of atherosclerosis. Garlic has an anti-inflammatory effect, and also has the effect of lowering platelets, reducing blood viscosity has a role in preventing thrombosis. Dietary adjustment has a certain role, but only as an auxiliary, there is no definite so-called dietary therapy, can not replace drugs, myocardial ischemia can check the blood lipids, if high lipids need to eat simvastatin and other lipid-lowering drugs, diet control alone on lipid change is limited.