In hyperthyroidism, excessive secretion of thyroid hormones promotes the metabolism of three major nutrients, sugar, fat and protein, and accelerates oxidation. The body’s heat production and heat dissipation increase significantly, and the basal metabolic rate increases abnormally, so the energy must be increased every day to correct the energy consumption in the body. Based on the above reasons, hyperthyroidism patients should pay attention to the appropriate increase of calories in their diet during the attack period, pay attention to the supplementation of some high-protein and high-vitamin foods, and timely supplementation of calcium, phosphorus, potassium, zinc and magnesium when necessary to correct the consumption caused by hyper-metabolism and improve the systemic symptoms. Special attention: During the recovery period of hyperthyroidism iodine-131 treatment, patients should pay attention to rest and control the amount of diet at the same time, otherwise it will trigger obesity.