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Non-Pathogenic Commensals

Meaning

Non-pathogenic commensals are microorganisms, primarily bacteria and fungi, that habitually reside within the host’s body, particularly the gastrointestinal tract, without causing disease and often conferring significant health benefits. These microbes are integral to the gut microbiota, engaging in a symbiotic relationship with the host by aiding in the digestion of complex carbohydrates, synthesizing essential vitamins, and educating the immune system. Maintaining a robust population of these commensals is crucial for gut barrier integrity and metabolic homeostasis.