This is a double-blind, randomized controlled colonization pilot study with no cross over to evaluate the colonization efficacy of two different lozenges containing either dairy or dairy free probiotic bacteria Streptococcus salivarius M18.~Participants will be randomly assigned to one of the 2 groups consuming probiotic lozenge containing dairy free Streptococcus salivarius M18 or dairy based Streptococcus salivarius M18 over a seven day period. Saliva samples will be collected at predetermined time points pre and post intervention. Colonization efficacy will be determined by enumerating the probiotic in the saliva samples using standard microbiological techniques.
The aim of this study is to evaluate the colonization efficacy of probiotic lozenges containing dairy and dairy free probiotic Streptococcus salivarius M18, in healthy adults