Re: Kefir and Colonization of bacteria

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2045662/?tool=pmcentrez


"The oral administration of the supernatant of milk fermented by L. helveticus R389 enhanced the gut mucosal immunity by improving the mechanisms that reinforce the epithelial and non-specific barriers and the gut functioning at sites of infection, with an improvement in the expression of the enzyme calcineurin, an important signal in the network that activates the gut immune system. The results of this work contribute to revealing the mechanisms underlying the immunomodulation of the gut immune function by fermented milks with probiotic bacteria."

"Fermented milks with probiotic microorganisms are a way of delivering active constituents to targets in the gastrointestinal tract."