Background: Probiotics can be viewed as biological agents that modify the intestinal microbiota
and certain cytokine profiles, which can lead to an improvement in certain gastrointestinal
diseases, including diarrhea, inflammatory bowel disease, and liver disease.
Objective: Consumption of probiotics in their various forms, including yogurt, functional foods, and
dietary supplements, is frequently encountered worldwide. Often, however, the correct prescription of
these agents is dampened due to a lack of knowledge of the scientific evidence and the different presentations
and microbial compositions of the currently available probiotic options.
Method/Results: Here, we provide an up-to-date review of the evidence of probiotics in the prevention
and treatment of various gastrointestinal diseases.
Conclusion: While not efficacious in every disease process studied, probiotics have demonstrated
some benefit in several specific gastrointestinal and liver diseases.