Simply taking an over the counter probiotic may not be enough to fully restore the healthy function of our microbiota.
The microbiota of humans consists of approximately 10-100 trillion microbial cells. Put into perspective, this is approximately ten times the population of the human cells in your body.
Your microbiome comprises as much as 3% of your body mass. Primarily, microbes reside in the gut; however, no surface of the human body is free of them.