# Mouth vs Gut Bacteria
> The mouth and the gut host different microbial communities. See why a probiotic aimed at one does not simply work for the other.

## Guides
- [The Mouth's Microbial Neighborhood in Plain English](https://oral-bacteria-vs-gut-bacteria.rudyjufo.workers.dev/how-many-bacteria-live-in-the-mouth/): The mouth hosts a large and varied community of microbes, and nobody can give you a single exact count because it shifts by person, site and time of day.
- [What Happens to Probiotics That Get Swallowed](https://oral-bacteria-vs-gut-bacteria.rudyjufo.workers.dev/swallowed-bacteria-and-stomach-acid/): Once swallowed, bacteria face stomach acid, bile and a crowded intestine, and what survives depends on the strain and on how it was made.
- [The Mouth-Gut Connection: What Is Known So Far](https://oral-bacteria-vs-gut-bacteria.rudyjufo.workers.dev/mouth-gut-connection-research/): Scientists are studying whether the community of microbes in the mouth and the one in the gut influence each other, and the picture is interesting but.
- [Why Diversity Matters in the Mouth's Microbiome](https://oral-bacteria-vs-gut-bacteria.rudyjufo.workers.dev/oral-microbiome-diversity/): A varied community of bacteria is generally seen by researchers as a sign of a stable mouth, but the science on oral microbiome diversity is still developing.
- [At-Home Microbiome Tests: Useful or Overhyped?](https://oral-bacteria-vs-gut-bacteria.rudyjufo.workers.dev/microbiome-test-kits-skepticism/): At-home kits can describe which bacteria were detected in a sample, but microbiome test kits skepticism is warranted because turning that list into advice you.

## About
- [About Mouth vs Gut Bacteria](https://oral-bacteria-vs-gut-bacteria.rudyjufo.workers.dev/about/): not medical advice, how the site is funded and how guides are made

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