我們的身體內外從口腔至肛門，有10倍於自身細胞數的細菌微生物。一般，85%有益細菌，僅15%有害的。

來源: 益生菌於 2015-07-13 19:10:35 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.