飲食中的水分很少達到直腸，絕大多數在小腸吸收。腸道再分泌各種消化液加工食糜。大便幹燥與否取決於大腸功能及腸道菌群

來源: fuz 於 2018-03-02 12:41:08 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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