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鋅 Zn 的營養百科
撰寫｜XiaodongMS 校稿｜ Haoran PHD
編審｜Xinyin PHD, RD 設計｜Fay
引言
鋅是人體必需的一種礦物質，參與人體內細胞代謝的諸多途徑，尤其在免疫、創傷癒合、蛋白質合成、DNA表達、細胞分化等領域發揮作用。此外，鋅也參與維護嬰幼兒的正常生長發育和智力發育 [1-4] 。
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極養視點
鋅與機體健康有著密不可分的關係；
胃腸道疾病患者，素食主義者，孕期和哺乳期女性以及純母乳喂養的年長嬰兒容易缺鋅；
缺鋅的主要表現為：生長遲緩，食欲不振，免疫功能損傷等；
鋅攝入過量會引起、噁心、嘔吐、食慾下降、腹瀉、腹部絞痛、頭痛等症狀，也會影響銅鐵在體內的平衡；
年齡性別不同，每日對鋅的需求量也不同；
肉類（牛，羊，豬瘦肉），海鮮（乾貝，牡蠣，蝦），動物內臟，雞蛋，牛奶等都是良好的鋅的來源，且吸收利用率高。
參考文獻
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