A low iodine diet is recommended for Hashimoto’s thyroiditis. Patients with hypothyroidism should avoid high-fat foods, and those with hyperthyroidism should avoid high iodine foods and coffee. 1. Hashimoto’s thyroiditis: too much iodine may aggravate the condition. Hashimoto’s thyroiditis should be on a low iodine diet, avoiding large amounts of seaweed and seaweed. 2. Thyroiditis with hypothyroidism: Hypothyroidism may cause elevated blood lipids, so avoid eating high-fat foods such as fatty meats and fried foods. 3. Thyroiditis with hyperthyroidism: Iodine is one of the raw materials for synthesizing thyroid hormones, so thyroiditis with hyperthyroidism patients should avoid eating iodine-rich foods, and also avoid drinking coffee, strong tea and other drinks that make the mind excited. Thyroiditis patients should be under the guidance of the doctor scientific diet.