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

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 ResearchGate Visit the Hsiao Lab at UCLA and follow Dr. Hsiao on Google Scholar Donations went to GiveDirectly.org/ologies and the Los Angeles Regional Food Bank More episode sources and links Other episodes you may enjoy: Microbiology (GUT BIOME), Molecular Neurobiology (BRAIN CHEMICALS), Fromology (CHEESE), Scatology (POOP), Gustology (TASTE), Cardiology (THE HEART) 400+ Ologies episodes sorted by topic Smologies (short, classroom-safe) episodes Sponsors of Ologies Transcripts and bleeped episodes Become a patron of Ologies for as little as a buck a month OlogiesMerch.com has hats, shirts, hoodies, totes! Follow Ologies on Instagram and Bluesky Follow Alie Ward on Instagram and TikTok Editing by Mercedes Maitland of Maitland Audio Productions, Jake Chaffee, and Jarrett Sleeper of Mindjam Media Managing Director: Susan Hale Scheduling Producer: Noel Dilworth Transcripts by Aveline Malek  Website by Kelly R. Dwyer Theme song by Nick Thorburn Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.