Eating less salt is helpful in lowering blood pressure, but it is only one type of lifestyle management for controlling blood pressure, and due to individual differences, it is not possible to determine the exact amount of time that eating less salt will lower blood pressure. Eating less salt slows sodium retention and reduces tightening of blood vessels, which can help bring down blood pressure, but does not cure hypertension. Sodium restriction is an important preventive and curative measure. It is recommended that daily salt (sodium chloride) intake be limited to <6g, and daily sodium intake to <2.4g. Foods with high sodium content, such as salted vegetables, ham, and pickles, can be eaten sparingly, and more potassium-containing foods, such as vegetables and fruits, can be consumed. Risk factors for the development of hypertension include heredity, age, atherosclerosis, and poor lifestyle (e.g., high-sodium and low-potassium diet, alcohol consumption, obesity, and mood). Changing poor lifestyle is the cornerstone of hypertension management, such as reducing salt, quitting smoking and limiting alcohol consumption, adjusting mindset, and reducing weight. If patients are diagnosed with hypertension, eating less salt can help lower blood pressure and reduce the occurrence of comorbidities. However, in general, patients with hypertension need to add reasonable medication on top of lifestyle management in order to reach the standard blood pressure value, and it is recommended that they visit the cardiology department of the hospital in a timely manner and follow the doctor's instructions for treatment.