Postbiotics

You may be surprised to know the true scientific definition of a postbiotic: a preparation of inanimate microorganisms and/or their components that confers a health benefit on the host. In other words, postbiotics are killed microorganisms (either the parts or the whole), which are tested and shown to provide a health benefit. Molecules (or “metabolites”) produced by microorganisms do not qualify as postbiotics on their own, although they may be present in a postbiotic mixture.