Thyroid nodules are often detected during medical checkups. Once thyroid nodules are detected, thyroid function tests should be performed promptly. If thyroid function indicators are normal, it is generally recommended that thyroid ultrasound and thyroid function indicators should be reviewed regularly in 3-6 months. What is the diet for thyroid nodule patients with normal thyroid function? A normal balanced diet is sufficient. Additional iodine supplementation is not recommended unless a clear test indicates iodine deficiency, as too little or too much iodine may lead to thyroid nodules. Patients with hyperthyroidism should limit their diet to iodine-rich foods: do not overindulge in seafood, such as sea fish, shrimp, seaweed and kelp, and try to use non-iodized salt. The diet of patients with thyroid nodules in combination with hypothyroidism can be appropriately increased with iodine-rich foods: a slight increase over a normal balanced diet is sufficient, but it is not recommended to eat large amounts every day, otherwise it will increase the hardness of the thyroid gland. Regardless of abnormal thyroid function, the following foods should be avoided in large quantities over a long period of time: cabbage, cassava, rape, cauliflower, soybeans, cabbage, kale, squash, radish, etc. These foods contain goitre-producing ingredients that compete for bound iodine and lead to insufficient synthesis of thyroxine. In addition to diet, mental tension, depression, worry, and easy anger also have a greater impact on thyroid disease, so relief and relaxation are also critical to the prevention and treatment of thyroid disease!