Hyperthyroid patients can eat buckwheat noodles, but in moderation, not too much. Hyperthyroidism is caused by excessive secretion of thyroid hormones caused by an endocrine disease, can cause high metabolic state, hyperthyroidism patients should not eat iodine-rich foods, such as kelp, seaweed, seafood, etc., because iodine is the synthesis of one of the raw materials of the thyroid hormone, eating such food is not conducive to disease control. Buckwheat noodles are rich in dietary fiber, protein, carbohydrates and other nutrients, can play a role in promoting defecation, relieve constipation, replenishment of energy and so on, and buckwheat noodles are not high in iodine, so hyperthyroidism can be appropriate to eat buckwheat noodles. However, hyperthyroid patients may have increased bowel movements, diarrhea, if a large number of dietary fiber-rich foods will aggravate the symptoms of diarrhea. Patients diagnosed with hyperthyroidism should actively cooperate with the doctor’s treatment and maintain a healthy diet.