The females of each species of mammals produce a milk of different composition, adapted to the needs of their young. The protein content of each one is related to the speed of growth of the species and the lactose content probably with postnatal brain development. The milk of women is, of all known, the lowest protein content and highest content of lactose (disaccharide formed by glucose and galactose, which practically represents all the sugar). In addition, breast milk contains : fats, vitamins, minerals, hormones, enzymes, immunological and defensive factors; and the proportion of water is around 88%.
Therefore, in breastfeeding practically all are advantages, since with it you get: better digestive, metabolic and nutritional state, a greater immunological protection, a lower risk of allergic sensitization, a better psychic evaluation with different conception of motherhood and better psycho-affective development of the child, lower infant morbidity and mortality, greater cerebral and sensory development with special importance in preterm and low birthweight infants. In comparison with milk prepared for babies , it is evident that it is a milk different from that of a woman, traditionally it is cow's milk. In all cases, they are milks that have to meet the requirements demanded by the European Society of Gastroenterology, Hepatology and Nutrition (ESPGHAN) and that are reviewed periodically according to the scientific knowledge that allows to more resemble its composition to breast milk.
The milk rise
On the rise of milk, usually in the caesarean section can be delayed 24-48 hours for not having contractions (scheduled caesarean section) or if the time of contractions has been very short (cesarean section of resource). Anyway, during my personal experience I have seen many times a rapid rise in mothers who have already been and adopt a very positive attitude.
Freeze breast milk
Another question that usually arises is if breast milk can freeze: yes you can freeze. However, strict hygiene rules must be explained to the mother before extraction: preferably use freshly extracted milk, keep in the door freezer for 2 weeks, in a separate freezer for 3-6 months and in a constant temperature Frost 6 -12 months. So the milk remains with the same properties when thawing. And if it is not used it must be discarded in 24 hours.