Hyperthyroidism patients are advised not to drink coffee, so as not to cause nerve excitation and aggravate the condition. Hyperthyroidism is a group of hypermetabolic syndromes dominated by high concentration of thyroid hormones in the blood due to various reasons, manifested by symptoms such as protruding eyes, hyperactivity, polyphagia, emaciation, palpitations, fatigue and even limb weakness. Dietary needs to avoid taking spicy stimulation, cause nerve excitation or affect the body metabolism of food, such as coffee, drinks containing caffeine, tea and so on. Caffeine has a nerve excitatory effect, hyperthyroidism itself can lead to palpitations, hyperactivity, and then taking caffeine is likely to aggravate the condition, which is not conducive to the control of the disease. Patients with hyperthyroidism are advised to eat and treat properly under the guidance of a doctor.