And verily in cattle (too) will ye find an instructive sign. From what is within their bodies between excretions and blood, We produce, for your drink, milk, pure and agreeable to those who drink it.
Milk is a secretion in the female body, like other
secretions, but more specialized.
Is it not wonderful that the same food, eaten by males
and females, produces in the latter, when they have
young, the wholesome and complete food, known as
Then, when cattle are tamed and specially bred for milk,
the supply of milk is vastly greater than is necessary for
their young and lasts for a longer time than during the
period they give suck to their young.
And it is a wholesome and agreeable diet for man. It is
pure, as typified by its whiteness. Yet it is a secretion
like other secretions, between the excretions which the
body rejects as worthless and the precious blood-stream
which circulates within the body and is the symbol of life
itself to the animal which produces it.
Yusuf Ali, Abdullah. Translation and Commentary of the Quran. (surah 16 verse 66). Microsoft Word – 016 Nahl.doc (quran4u.com)