The Intestinal Flora of the Baby

There is evidence that breastfed babies have higher resistance to gastrointestinal infections, urinary tract and infant formula makers. This is due to the presence in breast milk of a conglomerate of bioactive substances, such as immunoglobulins, cytokines, prolactin, leukocytes, lactoferrin, lysozyme and oligosaccharides.
The oligosaccharides act as prebiotics, to reduce the survival of pathogenic microorganisms and promote growth of bifidobacteria and lactobacilli from the intestinal flora of the baby.
In infant formulas, the prebiotic inulin is used to man-made products that balance the intestinal system. Part of ingested oligosaccharides resist digestion and intestinal digestive and become substrate for colonic bacterial fermentation. During fermentation, bacteria produce short chain fatty acids (SCFAs: acetate, butyrate, propionate).
These compounds are responsible for the decrease in intestinal pH, which creates an unfavorable environment for the growth of some pathogenic bacteria (E. coli “,” Shigella “,” Faecal Streptococcus “and” Clostridium sp “). This in turn generates favorable conditions for the growth of bifidobacteria. It is proven that an exclusive diet of breast milk between the first and third months of life increases exponentially the number of bifidobacteria and these are the predominant colonic flora.
This intestinal balance positively affects the body’s defenses and there is a propensity to the formation of immunoglobulin E (IgE) and allergic reactions such as eczema or atopic dermatitis.