People with hypothyroidism usually do not eat non-iodized salt, and it is best to eat iodized salt. If the cause of hypothyroidism is related to iodine deficiency in the body, it is necessary to supplement iodine-rich foods, and iodized salt can be eaten. If the cause of hypothyroidism is not related to iodine deficiency, exogenous supplementation of thyroid hormones can be done under the guidance of a physician. Hypothyroidism is hypothyroidism, and there are many causes of hypothyroidism, such as Hashimoto’s thyroiditis, post-thyroidectomy, iodine 131 treatment, iodine deficiency, etc. If the cause of hypothyroidism is related to iodine deficiency in the body, you need to supplement iodine-rich foods. If the cause of hypothyroidism is related to the lack of iodine in the body, such as endemic goiter and congenital hypothyroidism, you need to supplement iodine-rich foods. Because iodine is an important raw material for synthesizing thyroxine, proper consumption of iodized salt in daily cooking is one of the simplest ways to replenish iodine, so patients with hypothyroidism in this category are recommended to eat iodized salt instead of non-iodized salt. If the cause of hypothyroidism has nothing to do with iodine deficiency, such as Hashimoto’s thyroiditis, thyroidectomy or hypothyroidism caused by iodine 131 treatment, supplemental thyroxine can be used for treatment. Although it is possible to eat non-iodized salt for this type of hypothyroidism, it is also possible to eat iodized salt and it is recommended to consume it in moderation. For more information about the health of food, consult a nutritionist for scientific and rational consumption under the guidance of a physician.