Thyroid nodules are a relatively common clinical thyroid disease. Patients with thyroid nodules can improve their immunity by drinking tea regularly, which can play an auxiliary role in the treatment of thyroid nodules. Commonly used teas are summer grass tea, dandelion tea, pu-erh tea, honeysuckle tea, and the sweet taste of jasmine tea, but try not to drink green tea. These teas contain a lot of tea polyphenols, which are very beneficial in terms of anti-tumor and improving the body’s immune system, all of which can play an auxiliary role in reducing thyroid nodules or enabling thyroid nodules to shrink and stabilize the condition. In addition to drinking tea, try to eat less greasy and stimulating food, eat more fresh vegetables and fruits, especially high protein, high vitamin lean meat, eggs, soy products, etc. Try to eat less food containing iodine, such as seafood and iodized salt, etc.