Hyperthyroidism can eat sweet food, but should not be excessive. Hyperthyroidism is an endocrine disease caused by the thyroid gland synthesizing and releasing too much thyroid hormone, resulting in increased excitability of the sympathetic nervous system and hypermetabolism of the body. There are often symptoms of hypermetabolism such as panic, excessive sweating, weight loss, diarrhea, etc., and excessive physical exertion, which can be supplemented by eating sweet food in moderation, but not in excess. Hyperthyroidism in the combination of diabetes or hyperglycemia is not recommended to eat too sweet food, general sweets contain high sugar content, consumption can lead to increased blood glucose, blood glucose fluctuations, is not conducive to diabetes or hyperglycemia patients with blood glucose control. Patients with hyperthyroidism should adopt a high-calorie, high-protein, high-vitamin, low iodine, low-fiber diet, pay attention to hydration, avoid iodine-rich foods, such as nori, kelp, sea fish, etc., and standardize the treatment under the guidance of the doctor.