碘是人体必需微量元素之一。成人体内有20～50毫克碘,约有50％分布在肌肉,20％在甲状腺,10％在皮肤,6％在骨骼中,其余14％分布于其他组织中。世界卫生组织建议每人每日碘摄入量为:成年男性140微克,女性100微克,儿童、青少年、孕妇、乳母应相对增高。富含碘的食物是海产品,如 Iodine is one of the essential trace elements of the human body. Adults have 20 to 50 mg of iodine, about 50% in muscle, 20% in the thyroid, 10% in the skin, 6% in the bones and the remaining 14% in other tissues. World Health Organization recommends that iodine intake per person per day: adult male 140 micrograms, 100 micrograms of women, children, adolescents, pregnant women, nursing mothers should be relatively high. Food rich in iodine is seafood, such as