Just as the benefits of fiber result from both the prebiotic fueling of good bacteria and the resulting postbiotic metabolites (short-chain fatty acids), polyphenols can act as prebiotics and also result in beneficial postbiotics. For example, there is an immediate bump of blueberry pigments in our blood within an hour of consumption, but a day later, new blueberry-derived compounds continue to appear in our bloodstream as our bacteria churn out new goodies from them.7582 In this way, berry polyphenols can be the gift that keeps on giving.
