Low-sodium salt contains less sodium, with a certain amount of potassium, can maintain the electrolyte balance in the body, this kind of salt is suitable for the elderly with cardiovascular and cerebrovascular diseases. My family has two old people, cooking has been using snow day low sodium salt. However, listening to some medical professionals said, high-temperature workers, heavy labor intensity workers and renal dysfunction and people taking blood pressure medication for hypertension patients should be used with caution.