Hyperthyroidism patients should not eat foods containing more iodine, but there is no clear contraindication in terms of fruits. All common fruits can be eaten instead of three, such as common bananas, pears, kiwi, apples, etc. Daily diet has no therapeutic effect, but it helps the recovery of the disease. Patients can follow the medical advice for treatment, while matching a healthy diet. Patients are advised to consume fruits that contain potassium ions, because patients with hyperthyroidism may suffer from periodic paralysis caused by potassium deficiency. Fruits such as bananas and kiwis are rich in potassium ions, which help replenish vitamins and assist in the treatment of periodic paralysis. However, fruits are not a substitute for medication and should not be consumed in large quantities. Consuming large amounts of fruits with high sugar content also carries the risk of inducing low potassium. In addition, patients with hyperthyroidism need to supplement their nutrition, especially during thyrotoxicosis, by consuming more high-quality protein, such as milk, lean meat, eggs and beef, and avoiding diets with high iodine content, such as kelp and nori. It is recommended to improve work and rest, ensure sufficient rest, and actively treat under the guidance of a doctor.