Whether it is better to add iodine or not to add iodine to table salt depends on the health condition, it is better not to add iodine to table salt if you are a patient with hyperthyroidism, or to add iodine to table salt if you are a healthy person. Hyperthyroidism patients due to the body’s thyroid hormone secretion is too much, can not be too much iodine intake, otherwise it is likely to lead to aggravation of the disease, so in the choice of edible salt should choose non-iodized salt. Other healthy people should choose iodized salt, because a lack of iodine in the body can easily cause a series of diseases, such as endemic goiter, and if a pregnant woman is deficient in iodine, it may also lead to the child’s development of cretinism, i.e. congenital hypothyroidism. You should choose the right kind of salt according to your situation to avoid adverse effects on your health due to iodine deficiency or excessive iodine intake.