Hypothyroidism refers to hypothyroidism, and there are generally no foods that are firmly off limits. Patients with hypothyroidism do not have obvious dietary restrictions, but hypothyroidism caused by specific diseases needs attention, such as hypothyroidism caused by Hashimoto’s thyroiditis, patients should avoid eating iodine-rich foods or medications such as nori and amiodarone. In daily life, patients with hypothyroidism should have a comprehensive diet, and should avoid long-term consumption of foods with goiter-causing effects in large quantities, such as cabbage, kale, cassava, and so on. If the hypothyroidism is caused by iodine excess, the intake of iodine needs to be restricted. Meanwhile, patients with hypothyroidism should have their thyroid function checked regularly and seek medical advice if they feel unwell.