Watermelon seeds are relatively rich in unsaturated fatty acids, vitamins and other nutrients, which help prevent the occurrence of atherosclerosis and have the effect of lowering blood pressure, so it is a suitable snack for hypertensive patients. However, it is recommended that hypertensive patients should eat the original flavor of watermelon seeds, avoid eating other processed flavors of watermelon seeds, because other flavors of watermelon seeds will generally be added with salt, such as salty watermelon seeds, if eating too much of this type of watermelon seeds, will make the patient’s intake of sodium increased significantly, which is likely to cause an increase in blood pressure.