Patients with hypertension can eat deep-sea fish oil in moderation. Deep-sea fish oil has high nutritional value and is helpful in improving blood lipid metabolism, preventing diabetes and hyperlipidemia, protecting the vascular endothelium, anti-oxidation and delaying the occurrence of atherosclerosis. In addition, it can also improve the level of HDL cholesterol in the body, and the increase of HDL cholesterol can assist in preventing the occurrence and development of atherosclerosis. For effective reduction of cardiovascular disease, improve the prognosis of hypertensive patients, reduce the rate of disability and death of hypertensive patients, have a very good role. However, it should be noted that deep-sea fish oil is not a drug and cannot be used to treat hypertension by eating deep-sea fish oil.