It would seem that there ought not to be any mystery about mom's milk. From the moment of conception on, the system is so beautifully organized to guarantee the optimal growth and maturation of the infant.

It has been known for a long time the virtues and limitations of different types of infant feeding. In a study covering 20,061 babies

http://orthomolecular.org/library/jom/1994/articles/1994-v09n03-p151.shtml