An overview of the importance and role of probiotics in community health improvement

The consumption of healthy and natural food supplements in dietary plans positively impact food quality. Additionally, replacing chemical compounds with beneficial alternatives can enhance the functions of different body systems, including the digestive, immune, and nervous systems. Probiotics are foods and/or supplements that contain non-pathogenic microbes such as bacteria and yeast that colonize the gut and can potentially yield a variety of health benefits. The ability of probiotics to modify the immunological response of the host, antagonize pathogenic microbes, or compete for adhesion sites with pathogenic microorganisms is related to the action of probiotics against microorganisms. Different studies make it possible to identify the probiotics that are most suitable for a given application such as food items (cheese, milk, and yogurt) or supplements (chewing gum, lozenges). Because these bacteria have the benefit of being completely adapted to the human oral ecology, the presence of probiotics in the native human microflora should be studied. Previous studies regarding the benefits of probiotics on the human intestinal microbiome indicating the promising findings for the cure of gut-related disorders. Considering these health benefits of probiotics, now it has been applied to different food materials which are designated as functional food. This review explored a portrait of the beneficial effects of probiotics on human health.