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Lactobacillus salivarius is found to live in the gastrointestinal tract and mouth. It is from the phylum Firmicutes. Like other bacteria from the genus lactobacillus it can inhibit pathogenic bacteria (1). Studies have shown that it can improve health conditions such as irritable bowel syndrome,  especially alleviating  symptom of excess gas (2). One study also looked at its effects in pancreatic necrosis.  It was demonstrated that a probiotic could in vitro inhibit the growth of pathogens, commonly found in infected pancreatic necrosis. Lactobacillus salivarius was found to be one of the strongest components of this probiotic (3). A further study showed that the  in vivo antimicrobial effects of one strain of L. salivarius depended on its ability to produce a bacteriocin, which inhibited the growth of Gram-positive microorganisms. Finally a preliminary study showed positive effects on children affected by atopic dermititis (5)




  1. Neville, BA.; O’Toole, PW. (May 2010). “Probiotic properties of Lactobacillus salivarius and closely related Lactobacillus species.”. Future Microbiol. 5 (5): 759–74. doi:10.2217/fmb.10.35. PMID 20441548.
  2. Ortiz-Lucas, M.; Tobías, A.; Saz, P.; Sebastián, JJ. (Jan 2013). “Effect of probiotic species on irritable bowel syndrome symptoms: A bring up to date meta-analysis.”. Rev Esp Enferm Dig. 105 (1): 19–36. doi:10.4321/s1130-01082013000100005. PMID 23548007.
  3. Ridwan, BU.; Koning, CJ.; Besselink, MG.; Timmerman, HM.; Brouwer, EC.; Verhoef, J.; Gooszen, HG.; Akkermans, LM. (Jan 2008). “Antimicrobial activity of a multispecies probiotic (Ecologic 641) against pathogens isolated from infected pancreatic necrosis.” (PDF). Lett Appl Microbiol. 46 (1): 61–7. doi:10.1111/j.1472-765X.2007.02260.x. PMID 17944834.
  4. Corr, S.C., Li, Y., Riedel, C.U., O’Toole, P.W., Hill, C. and Gahan, C.G. (2007) Bacteriocin production as a mechanism for the anti-infective activity of Lactobacillus salivarius UCC118. Proc Natl Acad Sci USA 104 , 7617–7621.
  5. Niccoli, AA.; et al. (Nov–Dec 2014). “Preliminary Results on Clinical Effects of Probiotic Lactobacillius Salivarius LS01 in Children Affected by Atopic Dermititis”. Journal of Clinical Gastroenterology (48, supplement 1): S34–6.