Clinical has not found what salt is best and healthiest, so do not believe the so-called what salt is best and healthiest, there is no scientific basis. The main component of salt is sodium chloride, and one of the criteria for deciding whether salt is good or bad for health is the sodium content. In China, about 76% of sodium comes from home cooking, followed by eating out and pickled foods. The latest dietary guidelines for Chinese residents state that adults should consume no more than 5g of salt per day. High sodium and high salt is an important influence on the occurrence of cardiovascular disease, so we try to achieve low salt and low sodium, light diet. It should be noted that due to different physical conditions and environmental factors, different kinds of salt should be chosen. For example, like kidney dysfunction people are not suitable to consume high potassium salt. People with diseases or special working environment must choose under the guidance of doctors to avoid harm to the body.