Breast milk is the perfect nutrition for infants, a result of millions of years of evolution, finely attuning it to the
requirements of the infant. Breast milk contains many complex proteins, lipids and carbohydrates, the concentrations
of which alter dramatically over a single feed, as well as over lactation, to reflect the infant’s needs.
In addition to providing a source of nutrition for infants, breast milk contains amyriad of biologically active components.
Thesemolecules possess diverse roles, both guiding the development of the infants immune systemand
intestinal microbiota.