Iodized means that iodide and sodium chloride are mixed with each other to form salts, and uniodized means that it contains only sodium chloride. Iodine is a trace element, and an essential one at that. Iodine deficiency can lead to hypothyroidism, decreased basal metabolic rate, decreased sympathetic excitability, which is characterized by slow thinking, memory loss, fatigue, slow heart rate, fear of cold, and increased sleep. However, excessive intake of iodine in the body will also increase the synthesis and secretion of thyroid hormones, so for patients with hyperthyroidism, be careful not to consume iodine-containing salts, otherwise it may lead to aggravation of the condition, in addition to not eating iodine-rich seafood, nori, and so on. For thyroid disease caused by iodine deficiency or excessive iodine, you can consult the endocrinology department of regular hospitals, under the guidance of the doctor’s reasonable diet and standardized treatment.