Diet has a very strong influence on hypertension. An unbalanced diet intake tends to lead to obesity and the ensuing insulin resistance, which can easily lead to hypertension. The high intake of salt and fat in the diet, as well as the lack of intake of fruits, vegetables and whole grains, can easily lead to an increase in blood pressure. Patients must be careful not to consume more than 5g of salt per day, and to control the intake of fat and fried foods, and to consume more fruits and vegetables. Be sure to quit smoking and limit the intake of alcohol, which has a very obvious role in promoting hypertension, and try to reduce the intake of alcohol in the diet. For people with high blood pressure, on the basis of oral antihypertensive drugs, it is also necessary to strictly control the diet, for example, with fruits rich in potassium, which helps to improve the retention of sodium and water in the body and is more suitable for patients with high blood pressure.