【极养视界】锌 Zn 的营养百科丨一图读懂！

锌 Zn 的营养百科

撰写｜XiaodongMS 校稿｜HaoranPHD

编审｜XinyinPHD, RD 设计｜Fay

引言

锌是人体必需的一种矿物质，参与人体内细胞代谢的诸多途径，尤其在免疫、创伤愈合、蛋白质合成、DNA表达、细胞分化等领域发挥作用。此外，锌也参与维护婴幼儿的正常生长发育和智力发育[1-4]。

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极养视点

• 锌与机体健康有着密不可分的关系；

• 胃肠道疾病患者，素食主义者，孕期和哺乳期女性以及纯母乳喂养的年长婴儿容易缺锌；

• 缺锌的主要表现为：生长迟缓，食欲不振，免疫功能损伤等；

• 锌摄入过量会引起、恶心、呕吐、食欲下降、腹泻、腹部绞痛、头痛等症状，也会影响铜铁在体内的平衡；

• 年龄性别不同，每日对锌的需求量也不同；

• 肉类（牛，羊，猪瘦肉），海鲜（干贝，牡蛎，虾），动物内脏，鸡蛋，牛奶等都是良好的锌的来源，且吸收利用率高。

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参考文献

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[3] Solomons NW. Mild human zinc deficiency produces an imbalance between cell-mediated and humoral immunity. Nutr Rev 1998;56:27-8.

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[8] World Health Organization and United Nations Children Fund. Clinical management of acute diarrhoea. WHO/UNICEF Joint Statement， August， 2004.

[9] Prasad AS， Beck FW， Bao B， Snell D， Fitzgerald JT. Duration and severity of symptoms and levels of plasma interleukin-1 receptor antagonist， soluble tumor necrosis factor receptor， and adhesion molecules in patients with common cold treated with zinc acetate. J Infect Dis 2008 ;197:795-802.

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[11] Broun ER， Greist A， Tricot G， Hoffman R. Excessive zinc ingestion. A reversible cause of sideroblastic anemia and bone marrow depression.

[12] https://ods.od.nih.gov/factsheets/Zinc-HealthProfessional/#en2

[13] Maret W， Sandstead HH. Zinc requirements and the risks and benefits of zinc supplementation. J Trace Elem Med Biol 2006;20:3-18.

[14] Sandstrom B. Bioavailability of zinc. Eur J Clin Nutr 1997;51 (1 Suppl):S17-9.

[15] Prasad AS. Zinc deficiency: its characterization and treatment. Met Ions Biol Syst 2004;41:103-37.

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