Drinking green tea in moderation has no special effect on coronary heart disease in general, but it may be hazardous to your health if you drink a lot of it or drink strong tea. Coronary heart disease should pay attention to lifestyle. Green tea contains tea polyphenols, caffeine, antioxidants and vitamin C, which can promote fat metabolism, coronary heart disease patients can drink in moderation, but does not play a therapeutic role. However, if the concentration of green tea is too high, it is easy to enhance the ventricular contraction after drinking, so that the heart rate increases, blood pressure rises, but not conducive to the control of coronary heart disease. It may also irritate the gastrointestinal tract and cause stomach pain. If you want to reduce the incidence of coronary heart disease and improve the quality of life, you should ensure a healthy lifestyle while taking active treatment. Eat a low-salt, low-fat diet, moderate consumption of fresh fruits and vegetables, while maintaining a good state of mind.