“…It was shown in mouse models that changes or interventions in the microbial composition may have influences on host metabolism and psychology (Dinan, et al, 2013, Plovier, et al, 2017). In addition, alterations and interventions in the gut ecosystem may cause diseases, as was discovered in the Nobel Prize winning case of Helicobacter pylori, which can cause ulcerative colitis (Marshall andWarren, 1984, Ahmed, 2005).…”