Surah 16:66
"And surely in the cattle is a lesson indeed for you: We give you to drink from what is in their bellies – between excretions and blood – pure milk, pleasant tasting to the drinkers."
Source and Purity of Milk
The Qur'an states that milk is produced, in the body, somewhere between excretions and blood. The mammary glands, where milk is produced and stored, are nowhere near the intestines which is where excrement is stored. Many kinds of cattle and goat milk needs processing or pasteurization before they can safely be consumed; the milk is often infected with bacteria and other...