Deep well salt can be eaten. Deep-well salt is suitable for consumption by the general public, it is salt made by extracting underground brine through drilling wells, taken from deep wells below 500 meters underground. It is rich in all kinds of natural minerals and has fewer impurities, making it more pure. Deep well salt can also be made into low-sodium salt after lowering the sodium content. Low-sodium salt has added potassium, which can prevent excessive sodium intake from leading to cardiovascular and cerebrovascular diseases. Therefore patients with kidney disease and high blood pressure, who need a low-sodium diet, can choose to consume low-sodium salt. In addition, in the salt bag can often see sea salt, lake salt, rock salt, bamboo salt and other words, which refers to the origin of the salt, and iodine content has nothing to do.