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锌是儿童生长发育最重要的微量元素之一,据报道,我国约有60％的学龄前儿童缺锌。缺锌的临床表现为:食欲不振、生长停滞或缓慢、味觉减退、创伤愈合不良及肢端性皮炎等;严重缺锌者有异食癖,喜吃墙土、灰渣等。 缺锌可使小儿机体免疫功能降低,免疫球蛋白减少,抵抗力低下,细胞免疫系统发生不良影响,所以容易引起感染;小儿容易患感冒和慢性腹泻,可能与平日摄取的锌量不足有关。研究证明,锌能防止感冒病毒的繁殖,减少引起炎症物质的组织胺产生;还有助于组织的生长与修复。
Zinc is one of the most important trace elements in the growth and development of children. It is reported that about 60% of preschool children lack zinc in our country. The clinical manifestations of zinc deficiency: loss of appetite, stagnant or slow growth, taste loss, poor wound healing and acral dermatitis, etc .; severe zinc deficiency who have pica, like to eat wall soil, ash and so on. Zinc deficiency can reduce immune function in children with reduced immune globulin, low immunity, the immune system adverse effects, it is easy to cause infection; children susceptible to colds and chronic diarrhea, may be related to the amount of zinc intake on weekdays. Studies have shown that zinc can prevent the breeding of cold virus, reducing the production of histamine causing inflammatory substances; also contribute to tissue growth and repair.