Fermented foods are claimed to contain probiotics, but turns out these microbes aren’t actually taking up residence in your microbiome.

Full fermented food diet experiment deep dive!    • Gut Health Hacks with Fermented Food  

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References: pubmed.ncbi.nlm.nih.gov/34256014/

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Lots of health claims focus on the live, active probiotics - so are the fermented food microbes moving into my gut to increase diversity? I didn’t measure the microbes in my fermented foods, but the Stanford study did, and they did not find the fermented food microbes taking up residence in participant’s microbiomes. So that points to something more indirect. One hypothesis is that the microbes create new kinds of beneficial compounds during fermentation, and then eating those beneficial compounds helps support more types of microbes in the gut to flourish.