Whether a normal person eats salt iodized or not depends on the local environment and their own iodine nutritional status. If you are in an iodine-deficient state, you need to take iodized salt, while if you are in a high iodine area or your thyroid function is hyperthyroid, you do not need to take iodized salt. Currently, salt iodization has changed from universal iodization in the past to a more scientific approach of deciding whether or not to iodize based on the area and iodine nutritional status. If one’s condition is assessed to be iodine-deficient, such as endemic goiter or insufficient iodine intake during pregnancy, iodized salt is required. If you are in a coastal area with high iodine intake, or if you have hyperthyroidism, you need to eat non-iodized salt, so as not to increase the risk of thyroid disease or aggravate the symptoms of existing hyperthyroidism. Therefore, it is best to consult an endocrinologist to assess whether or not a normal person is iodized, and to consult a doctor if there is any discomfort.