What to know about prebiotics vs. probiotics vs. postbiotics. Learn about the health, risks, and differences between the microbiota and how they might benefit your digestive system., While probiotics add live organisms to the gut, postbiotics are the beneficial compounds they create, offering a more direct and stable path to gut health., Prebiotics = The food that fuels beneficial bacteria. Probiotics = The live bacteria or yeast that provide gut health benefits. that exert health effects even though they are non-living., Rather than taking supplements, experts recommend eating fermented foods (probiotics) to promote microbiome diversity and fibrous foods (prebiotics) to feed and sustain “good†bacteria in the gut., Unpack the science of postbiotics vs probiotics. Learn differences in how live and inanimate microbes support gut health, and when each might be beneficial., One of the key differences between postbiotics and probiotics is their survivability. Probiotics are live organisms that must survive the harsh conditions of the digestive tract in order to be effective. This means that they may not always reach the gut in sufficient numbers to have a significant impact..