BreastFeeding Benefits
Breast milk is universally recognized as the preferred source of infant nutrition, and the nutritional advantages of breast milk have been well documented. Colos-trum, the first milk produced after delivery, provides an initial dose of enzymes that promote gut maturation, facilitate digestion and stimulate passage of meco-nium. Colostrum is also high in protein, primarily because of high levels of im-munoglobulins and secretory IgA. The protein in human milk is ideal not only for absorption, but also for utilization, especially by the rapidly developing infant brain. Human milk also contains predominantly polyunsaturated fats with stable amounts of cholesterol, an important constituent of brain and nerve tissue.
Human milk also protects against infection by providing cellular immunity through macrophages and humoral factors, such as antibodies. Numerous studies have verified that breast-fed infants have a lower incidence of bacterial and viral illnesses than bottle-fed infants. This low incidence is of particular clinical significance in developing nations? Ongoing research suggests that breast feeding may provide immuno-logic protection against diabetes mellitus, cancer and lymphoma. Finally, breast feeding has been found to provide protection from allergic diseases, including eczema, asthma and allergic rhinitis. This protection is most likely the result of breast milk decreasing intestinal permeability to large, allergenic molecules.
Recognizing these as well as other advantages, the American Academy of Family Physicians (AAFP) and the American Academy of Pediatrics (AAP) have identified breast milk as the preferred source of infant nutrition. In addition, the U.S. Public Health Service (USPHS) has established a national goal that, by the turn of the century, 75 percent of new mothers will be breast-feeding at the time of hospital discharge. Despite an emphasis on breast feeding by both private and government organizations, only 54 percent of U.S. mothers initiate breast feeding, and fewer than half of these mothers continue nursing for at least six months. Clearly, all health care providers should actively promote breast feeding if the goal set by the USPHS is to be accomplished.
To successfully promote breast feeding, family physicians should consider the influence of marketing campaigns aimed at expectant and new mothers by the manufacturers of infant formulas. Historically, their dogged marketing efforts have included the distribution of free cases of infant formula to expectant mothers, as well as the inclusion of formula samples in commercial hospital discharge packs designed for breast-fed infants. Physicians must work proactively to weigh the risks and benefits of promotional materials and develop appropriate policies governing their distribution in their hospitals or academic institutions.
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