The diet of the patient is particularly important in the process of hyperthyroidism maintenance. Because the demand for nutrients increases significantly in hyperthyroid patients due to their hyper-metabolism, if the nutritional supplementation is insufficient, the wasting will be more obvious, and even symptoms similar to those of advanced cancer will appear, therefore, it is very important to have a proper diet. Patients should pay attention to the following aspects of diet: daily calorie intake should be at least 2400 kcal for men and 2000 kcal for women. Eat more high-protein foods, and young patients should also eat more fatty foods, more vitamin-rich fruits and vegetables, and less spicy foods, such as chili, onion, ginger and garlic. Eat less iodine-containing foods, such as kelp, sea shrimp, sea fish, etc. Patients should pay special attention to the self-regulation of their mental and emotional state and spiritual life level, keep their mood relaxed, happy and emotionally stable, avoid getting wind and cold, overwork and high fever. Hyperthyroidism patients should pay attention to: l. Avoid spicy food: spicy, raw onion, raw garlic; 2. Avoid seafood: kelp, sea shrimp, scallops; 3. Avoid strong tea, coffee, tobacco and alcohol; 4. Keep a calm mood and avoid strain.