Patients with hypothyroidism can usually eat iodized table salt. Common causes of hypothyroidism include Hashimoto’s thyroiditis, iodine deficiency, and surgical removal of the thyroid gland. 1. Hashimoto’s thyroiditis: Hashimoto’s thyroiditis, also known as chronic lymphatic thyroiditis, is an autoimmune thyroid disease. Excessive iodine intake will aggravate the condition, and iodized salt can be consumed normally. 2. Iodine deficiency: in remote mountainous areas or inland areas far from the sea lack of iodized salt, iodine deficiency leads to a decrease in thyroxine synthesis, and eventually cause hypothyroidism, it is recommended that this type of patients can eat iodized salt. By consuming iodized salt, hypothyroidism caused by iodine deficiency can be reduced or avoided. 3. Surgical removal of bilateral thyroid glands: If thyroid surgery removes the thyroid glands, resulting in a decrease in thyroid hormones and the need for thyroid hormone replacement therapy, iodized salt can be ingested normally and will have little effect on the condition. Whether hypothyroid patients can eat iodized salt should be decided according to the cause of the disease under the guidance of the doctor.