# Organic Produce, Exercise vs Income, Cat Parasite, Thorne, Loss of Taste, and more... : 1495

Page: https://stenobird.com/podcast/the-human-upgrade-biohacking-for-longevity-performance-1031629/organic-produce-exercise-vs-income-cat-parasite-thorne-loss-of-taste-and-more-1495
Text version: https://stenobird.com/podcast/the-human-upgrade-biohacking-for-longevity-performance-1031629/organic-produce-exercise-vs-income-cat-parasite-thorne-loss-of-taste-and-more-1495.md
Podcast: [The Human Upgrade: Biohacking for Longevity & Performance](https://stenobird.com/podcast/the-human-upgrade-biohacking-for-longevity-performance-1031629)
Published: 2026-07-03T08:30:00+00:00
Episode link: https://dts.podtrac.com/redirect.mp3/mgln.ai/e/p394/rss.art19.com/episodes/7c7643d2-cd2a-4bdd-ab03-7270eac812de.mp3?rss_browser=BAhJIg90cmFuc2NyaWJyBjoGRVQ%3D--952c5701c84ad333c69d5faa668f8177091704f0
Audio file: https://dts.podtrac.com/redirect.mp3/mgln.ai/e/p394/rss.art19.com/episodes/7c7643d2-cd2a-4bdd-ab03-7270eac812de.mp3?rss_browser=BAhJIg90cmFuc2NyaWJyBjoGRVQ%3D--952c5701c84ad333c69d5faa668f8177091704f0
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Duration seconds: 645

## Resource

GLP-1 Side Effects, Gut Microbiome & Brain Health, Toxoplasmosis Risks, and the Dirty Dozen Explained  Plasma Acetate Emerges As Key Gut-Brain Messenger In Older Adults   A study published in Nature Communications examined how gut bacteria relate to plasma acetic acid, a short-chain fatty acid produced when gut microbes ferment fiber, and found that higher acetate levels tracked with lower triglycerides, higher HDL cholesterol, lower body fat, larger thalamic brain volume, and stronger performance on judgment-related cognitive tasks. Mediation analysis showed acetate acts as a direct link between specific gut bacteria, including Oscillibacter and Coprococcus, and these health outcomes. Host Dave Asprey breaks down why this elevates fiber fermentation, not fermented beverages, as the real lever for gut-brain health, and separates the evidence-backed mechanism from the kombucha-as-shortcut assumption.  Source:  https://www.nature.com/articles/s43856-026-01566-x   ~~  GLP-1 Drugs Linked To Sharp Rise In Smell And Taste Disturbances   A JAMA Otolaryngology cohort study tracking over 438,000 GLP-1 users against matched controls found a 48% higher risk of new smell or taste disturbances over two years, with smell disturbances up 81% and taste disturbances up 52%. Diagnoses included anosmia, parosmia, and parageusia, with researchers pointing to GLP-1 receptor activity in the olfactory bulb and other chemosensory pathways as a possible mechanism. Host Dave Asprey unpacks why this signal got buried under muscle loss and gut motility headlines, and what it means for anyone currently on or considering GLP-1 therapy.  Sources:  https://jamanetwork.com/journals/jamaotolaryngology/article-abstract/2850571   https://jamanetwork.c…

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