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作者对哺乳期妇女乳汁中的锌（Ｚｎ）浓度变化及其与机体Ｚｎ 平衡的关系，进行了纵向的与横向的比较。认为产后早期乳汁Ｚｎ 浓度较高，而以后分泌的乳汁中Ｚｎ 浓度下降是一种生理性调节，与Ｚｎ 的摄入量无关。在妊娠后期至产后３ 个月期间，随着母体一系列生理变化，体内Ｚｎ 代谢发生Ｚｎ 池动员和重分配；涉及摄入量、吸收分数、肠道及肾脏的内源性丢失，骨质吸收及子宫复旧Ｚｎ 动员等综合平衡过程。只有在摄入量发生长期大幅度变化时，Ｚｎ 摄入量才与乳汁Ｚｎ 浓度相关。
The author of lactating women in the milk zinc (Zn) concentration changes and its relationship with the body Zn balance, the vertical and horizontal comparison. It is thought that the higher concentration of milk Zn in postpartum early lactation and the subsequent decrease of Zn concentration in milk which is secreted is a physiological regulation, which has nothing to do with the intake of Zn. During the third trimester to the third trimester of pregnancy, Zn pool mobilization and redistribution occurs in Zn metabolism in vivo with a series of physiological changes in maternal body. The intake, absorption fraction, endogenous loss of intestinal and kidney, And uterine involution Zn mobilization and other integrated balance process. Only in the long-term changes in intake of long-term changes, Zn intake only with the concentration of milk Zn.