Due to individual differences, there is no such thing as eating what works best and fastest, for myocardial ischemia you can use nitrates, beta blockers, CCBs, etc. to improve myocardial blood supply. 1.Nitrate: such as nitroglycerin, isosorbide nitrate, etc., nitrate through the production of NO, dilation of blood vessels, expansion of the arteries can reduce peripheral resistance, reduce cardiac afterload; dilation of the veins, reduce cardiac preload; the two can reduce the heart’s oxygen consumption; followed by expansion of the coronary arteries, increase the coronary artery perfusion. 2. β-blocker: such as metoprolol, atenolol, etc., the drug by blocking the β1 receptor, thereby reducing the contractility of cardiomyocytes, lowering the heart rate, reducing the oxygen consumption of cardiomyocytes, improve myocardial ischemia. 3. CCB class: such as diltiazem, verapamil, etc., by antagonizing calcium ions, the heart’s vasodilatation, reducing the afterload of the heart; also dilate the coronary arteries, increasing coronary artery perfusion; but also reduces the heart’s contraction, reducing myocardial oxygen consumption. For myocardial ischemia, most of which is caused by coronary artery disease, you can take lipid-lowering drugs such as simvastatin, atorvastatin, etc.; you can also take antiplatelet drugs such as aspirin, clopidogrel, etc.; and anticoagulant drugs such as warfarin and rivaroxaban. If you suffer from myocardial ischemia, you must take medication under the guidance of a doctor and never take medication on your own.