The microbiome is back! In 2018, we chatted with Dr. Elaine Hsiao - a UCLA microbiome researcher– and learned all about the hot cauldron of your guts. In this 2025 update bonus, we chat again with Dr. Hsiao to get updates on the last 7 years of her research. We also stop by White Plains, New York to hang out with Dr. Miguel Freitas, lead nutritional microbiologist and director of the non-profit Danone Institute North America, and ask a million questions about good vs bad microbiota, how they simulate a human gut in a lab, what exactly is a pre-biotic vs. probiotic, why are they such good friends, how diet can impact not only your gut health but also your heart and your brain — and if friendly yogurt critters are robust enough to make the journey from your mouth to your toilet.  Browse Dr. Freitas’s publications on <a href="https://www.researchgate.net/profile/Miguel-Freitas-12">ResearchGate</a>Visit the <a href="https://hsiao.science/">Hsiao Lab at UCLA</a> and follow Dr. Hsiao on <a href="https://scholar.google.com/citations?user=I9cyQTQAAAAJ">Google Scholar</a>Donations went to <a href="http://givedirectly.org/ologies">GiveDirectly.org/ologies</a> and the <a href="https://www.lafoodbank.org/">Los Angeles Regional Food Bank</a><a href="https://www.alieward.com/ologies/nutritionalmicrobiology">More episode sources and links</a>Other episodes you may enjoy: <a href="https://www.alieward.com/ologies/microbiology-gut-biome">Microbiology (GUT BIOME)</a>, <a href="https://www.alieward.com/ologies/molecularneurobiology">Molecular Neurobiology (BRAIN CHEMICALS)</a>, <a href="https://www.alieward.com/ologies/fromology">Fromology (CHEESE)</a>, <a href="https://www.alieward.com/ologies/scatology">Scatology (POOP)</a>, <a href="https://www.alieward.com/ologies/gustology">Gustology (TASTE)</a>, <a href="https://www.alieward.com/ologies/cardiology">Cardiology (THE HEART)</a><a href="https://www.alieward.com/ologies-by-topic">400+ Ologies episodes sorted by topic</a><a href="https://pod.link/1746567248">Smologies (short, classroom-safe) episodes</a><a href="https://alieward.com/ologies-sponsors">Sponsors of Ologies</a><a href="https://alieward.com/ologies-extras">Transcripts and bleeped episodes</a><a href="https://www.patreon.com/ologies">Become a patron of Ologies</a> for as little as a buck a month<a href="https://www.ologiesmerch.com/">OlogiesMerch.com</a> has hats, shirts, hoodies, totes!Follow Ologies on <a href="https://www.instagram.com/ologies">Instagram</a> and <a href="https://bsky.app/profile/ologies.bsky.social">Bluesky</a>Follow Alie Ward on <a href="https://www.instagram.com/alieward">Instagram</a> and <a href="https://www.tiktok.com/@alie_ologies">TikTok</a>Editing by Mercedes Maitland of <a href="http://maitlandaudio.com/">Maitland Audio Productions</a>, <a href="https://www.jecmusic.com/">Jake Chaffee</a>, and Jarrett Sleeper of <a href="https://www.mindjammedia.com/">Mindjam Media</a>Managing Director: Susan HaleScheduling Producer: Noel DilworthTranscripts by Aveline Malek Website by <a href="https://www.kellyrdwyer.com/photo">Kelly R. Dwyer</a>Theme song by Nick Thorburn Hosted by Simplecast, an AdsWizz company. See <a href="https://pcm.adswizz.com">pcm.adswizz.com</a> for information about our collection and use of personal data for advertising.

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Bonus Episode: Nutritional Microbiology (GUT HEALTH & DIET) with Miguel Freitas and Elaine Hsiao

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