Coronary heart disease patients can eat fish, freshwater fish and seawater fish can eat, to eat the best deep-sea fish. Coronary heart disease is atherosclerotic heart disease, coronary artery intima lipid deposits form plaque blocking blood vessels, thus causing ischemia or necrosis of myocardial cells distal to the blocked vessels, clinical performance angina pectoris or myocardial infarction. Fish is low in fat and rich in protein, various amino acids, trace elements and minerals, which can promote the body’s metabolism and nourish the heart muscle. Especially deep-sea fish, such as yellowtail, scallops, tuna, etc. are rich in unsaturated fatty acids, with anti-atherosclerosis, softening of blood vessels, prevention of intravascular thrombosis and many other effects, very conducive to coronary heart disease patients to eat.