The constituents of milk are secreted by the mammary glands. These are nourished by the product of food digestion brought to them via the blood stream. Blood therefore plays the role of collector and conductor of what has been extracted from food, and it brings nutrition to the mammary glands, the producers of milk, as it does to any other organ. (The Bible, the Quran and Science, Maurice Bucaille, American Trust publication U.S.A. Another point to be noted is that many man – made products are contaminated with the raw materials used. In the case of milk, we do not have even traces of grass which the animal eats or blood which carries the extracted food. Is there any man made process which converts grass to milk as is done in the body of mammals?