Patients with hypertension should generally limit their salt intake to 5g per day. It is recommended that in addition to a low salt diet, patients with hypertension should also pay attention to a low-fat diet and consume less fatty foods every day, such as fatty meat or fried foods. A reduction in salt intake can effectively lower blood pressure by limiting salt to less than 5g per day, because a reduction in salt intake can reduce the body’s sodium and water retention, thus assisting in lowering blood pressure. Salt reduction is one of the steps, but also to improve other lifestyles, such as good weight control, quit smoking, limit alcohol consumption, improve poor work and rest, adhere to regular exercise and so on.