Foods that contain too much iodine, such as kelp, nori and shellfish, are not suitable for people with Hashimoto’s thyroiditis. Hashimoto’s thyroiditis is an autoimmune disease, and it is currently believed that excessive iodine intake may lead to the development and progression of autoimmune thyroiditis. Therefore, it is recommended that patients with Hashimoto’s thyroiditis should limit high iodine-containing foods, and iodine-rich foods mainly include seaweed, nori, seaweed, spirulina, razor clams, and scallops. At the same time, patients with Hashimoto’s thyroiditis and hypothyroidism should avoid high-fat foods, otherwise it may aggravate dyslipidemia. Patients with Hashimoto’s thyroiditis can get professional dietary advice from the endocrinology or nutrition departments of regular hospitals.