1, eat more foods that improve immunity, such as mushrooms, auricularia, red dates, tremella, yam, coix seed, medlar, gordon euryales and so on. And you can use these ingredients to make some good food, such as jujube yam porridge, tremella lotus seed soup, auricularia yam and so on. 2. Eat less cruciferous vegetables. Cruciferae vegetables include broccoli, radish, cabbage, cabbage and so on. These vegetables are often eaten in our daily life, but they are all good anti-cancer foods and are also good for health care. However, the high content of thiocyanic acid in cruciferous vegetables will lead to goiter, which is not conducive to the improvement of the disease. Therefore, patients with thyroid nodules should eat these vegetables in moderation, not in excess. 3, eat less spicy food because spicy food may contain some substances that will stimulate cell metabolism, which will lead to cell metabolism disorder and have a certain impact on thyroid nodules. Common spicy foods are pig's head, pepper, seafood, ginger and so on. In addition, drinking and smoking should be avoided in thyroid nodules, because toxic substances such as nicotine in smoke can cause harm to the body, and excessive drinking may lead to vasodilation, which may lead to nodular bleeding. Therefore, when suffering from thyroid nodules, you can't smoke and drink. 4, do not eat cold, cold food, cold food is a taboo for thyroid nodules. Patients with cold food nodules such as cold drinks and popsicles must not eat, as well as cold food such as crabs in seafood.