《古兰经》降示于穆斯林学者伊本·奈菲斯描述血液循环之前600年，也比威廉·哈维将这一认识带到西方世界早了1000年。大约十三个世纪之前，人们尚不知道肠道中发生的消化吸收过程如何确保器官获得营养，而《古兰经》中的一节经文就已描述了乳汁成分的来源，与这些说法相吻合。

The Qur’an was revealed 600 years before the Muslim scientist Ibn Nafees described the circulation of the blood and 1,000 years before 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 Qur’an described the source of the constituents of milk, in conformity with these notions.

要理解与上述概念相关的古兰经节文，有必要了解：化学反应发生在肠道中，食物中提取出的物质由此通过一个复杂的系统进入血液循环；根据其化学性质的不同，有时会经过肝脏。血液将这些物质输送到身体的所有器官，其中包括产奶的乳腺。

To understand the Qur’anic verse 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 via 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.