There is no such thing as “3 types of dietary contraindications for thyroid nodules”, there are no special dietary contraindications for patients with thyroid nodules, patients with hyperthyroid nodules need to limit iodine-rich foods, and patients with hypothyroid nodules should avoid high-fat foods. Patients with benign and asymptomatic thyroid nodules generally have no special dietary contraindications, and should ensure that their diet is nutritious, balanced and comprehensive. For patients with hyperthyroidism, they should limit iodine-rich foods, such as kelp, seaweed, seafood, etc., because iodine is one of the raw materials for synthesizing thyroid hormones, and hyperthyroidism may not be conducive to the recovery of the disease once iodine-rich foods are consumed. Thyroid nodule patients with hypothyroidism should limit high-fat foods, such as animal offal, fatty meat, fried foods, etc., because hypothyroidism may cause elevated blood lipids, and hypothyroidism patients may not be conducive to controlling blood lipids if they eat high-fat foods. Patients diagnosed with thyroid nodules should actively cooperate with doctors for treatment and maintain a healthy diet.