Coronary heart disease is a cardiovascular disease, essentially characterized by atherosclerosis in the coronary arteries. Therefore, foods that should be avoided are those that could further negatively affect vascular function and blood circulation. Specifically, foods high in cholesterol should be limited, particularly animal organs such as liver and offal from pigs and chickens, as these are the primary culprits in causing coronary artery atherosclerosis due to high blood lipids. Furthermore, foods rich in cholesterol like preserved eggs, crab roe, fish roe, and cream should also be consumed less frequently to prevent increased blood lipid levels and higher chances of atherosclerosis in the coronary arteries. Additionally, strong tea should be avoided as it may cause excitement, insomnia, and trigger heart disease. Also, it's advisable to avoid spicy foods and condiments such as chili peppers and mustard, as these can cause vasoconstriction and spasms, leading to angina or even myocardial infarction. Finally, smoking should be quit and alcohol intake should be limited, with individuals frequently experiencing episodes of coronary heart disease advised to abstain from alcohol completely.