碘是甲状腺合成甲状腺激素所必须的微量元素,甲状腺素对动物和人的正常生长都是必不可缺的,故凡是甲状腺激素所具有的各种生物学功能,诸如维持能量代谢、调节新陈代谢、促进中枢神经系统的结构发育与功能的建立等均与碘直接有关。碘缺乏病(IDD)就是机体因缺乏微量元素碘而引起 Iodine is a necessary trace element for thyroid synthesis of thyroid hormones. Thyroxine is indispensable for the normal growth of animals and humans. Therefore, thyroid hormones have various biological functions such as energy metabolism, regulation of metabolism, promotion Structural development of the central nervous system and the establishment of functions are directly related to iodine. Iodine deficiency disease (IDD) is the body due to the lack of trace elements caused by iodine