Whether to take iodized salt or not depends on the nature of the thyroid nodule. If it is Hashimoto’s thyroiditis, you can eat iodized salt in moderation; for thyroid cysts caused by iodine deficiency, iodized salt is generally required; if it is caused by hyperthyroidism, iodized salt is generally not recommended. 1. Hashimoto’s thyroiditis: caused by autoimmune abnormalities, iodine intake is an important environmental factor affecting the development of this disease, with the increase in iodine intake, the incidence rate increased significantly, so patients can eat iodized salt in moderation. 2. Thyroid cysts: most cases are thought to be related to iodine deficiency, which usually requires patients to eat iodized salt, otherwise the thyroid nodules may continue to increase. 3. Hyperthyroidism: usually due to excessive iodine intake, patients are usually advised to eat non-iodized salt, otherwise it will lead to an increase in iodine content, which will easily aggravate the condition. If thyroid nodules are detected, it is recommended to consult a doctor in time for diagnosis and treatment under his/her guidance.