Because hyperthyroidism is a high metabolism, which means that people consume more and lose weight, patients should increase their energy intake, maintain a balance, and not lose weight. People with hyperthyroidism can eat all kinds of food, and their diet should be diversified, but they should eat low iodine or even non-iodized salt. The thyroid gland of hyperthyroidism patients produces more thyroid hormone. When eating foods with high iodine content such as kelp and seaweed, the iodine will run into the thyroid gland and provide the thyroid gland with raw materials to produce thyroid hormone, and more thyroid hormone will be produced. Therefore, food must be low in iodine, and non-iodized salt can be used, and appropriate adjustments can be made slowly after the hyperthyroidism is stabilized. In conclusion, it is important to ensure adequate nutrition and meet the requirements of various nutrients in case of hyperthyroidism.