What are tiny health-promoting organisms that reside in the gut called?

The term for tiny health-promoting organisms that reside in the gut is "probiotics." Probiotics are live microorganisms, often referred to as "good" or "friendly" bacteria, that provide health benefits when consumed in adequate amounts. They contribute to the balance and diversity of the gut microbiome, supporting digestion, enhancing immune function, and potentially preventing the growth of harmful bacteria.

In the context of gut health, probiotics help maintain the integrity of the intestinal barrier and may alleviate conditions like irritable bowel syndrome and diarrhea, especially after antibiotic use. They play a crucial role in promoting overall health and well-being, making their presence in the gut vital for optimal function.

While microbiota refers to the entire community of microorganisms in the gut—including both beneficial and harmful bacteria—probiotics specifically denote those that have a positive effect. Prebiotics, on the other hand, are non-digestible food components that feed probiotics and promote their activity, enhancing the gut health benefits provided by the probiotics. Pathogens are harmful microorganisms that can cause disease, contrasting sharply with the health-promoting characteristics of probiotics.