It is generally not recommended to continue consuming table salt after its expiration date. The main ingredient of edible salt is sodium chloride, which is also a common seasoning product and plays a certain role in the taste of food as well as the growth and development of the organism. Expired salt that has been unpacked may come into contact with the air in the outside world, which may lead to a large amount of iodine volatilization in the salt, and its performance is extremely unstable, which is not able to meet the micronutrient requirements of the body. In summary, it is not recommended to consume expired salt, in addition, the dose of salt also needs to be controlled, daily consumption of salt should not be more than 6g is appropriate. If you eat too much salt, it will lead to edema, and the water in the body can not be discharged in time, mainly because the sodium ion in salt has hydrophilicity, and it will also increase the burden on the kidneys. In daily life, it is recommended to buy salt in moderation to avoid stocking up and wasting resources. If you accidentally eat expired salt, discomfort symptoms, it is recommended to promptly seek medical attention.