Blood circulation and milk production

Ibn Nafees was the first to describe the circulation of the blood. 1,000 years after which William Harwey brought this understanding to the Western world. Roughly thirteen centuries before it was known what happens in the intestines to ensure that organs are nourished by the process of digestive absorption, a verse in the Holy Qur’an described the source of the constituents of milk, in conformity with these notions.

To understand that verse of the Holy Qur’an concerning the above concepts, it is important to know that chemical reactions occur in the intestines and that, from there, substances extracted from food pass into the blood stream through a complex system; sometimes by way of the liver, depending on their chemical nature. The blood transports them to all the organs of the body, among which are the milk-producing mammary glands.

In simple terms, certain substances from the contents of the intestines enter into the vessels of the intestinal wall itself, and these substances are transported by the blood stream to the various organs.

Now have a look at the following quoted verse from the Holy Qur’an:

"And verily in the cattle there is a lesson for you, WE give you to drink of what is inside their bodies, coming from a conjunction between the contents of the intestine and the blood, a milk pure and pleasant for those who drink it."

[Al Qur'an 16:66]

This verse of the Holy Qur’an, describes the production of milk in cattle in a way that is strikingly similar to what modern physiology has discovered in recent times!