Aaron Hartman, MDFunctional Medicine Specialist | Clinical Researcher

The Surprising Link Between Gut Health and Your Immune System | Gut Health Q&A

18 Mar 2025 · 0 min

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A short excerpt from a YouTube Q&A (recorded March 18, 2025) featuring Aaron Hartman, MD discussing links between gut health and immune-related conditions. Dr. Hartman asserts that about 90% of the immune system is in the GI tract and notes that patients with PCOS or endometriosis commonly have gut issues, implying gut inflammation often accompanies immune-related disorders.

If you have PCOS endometriosis, it was. To date, I've not seen a single one of those patients who don't have gut issues. So sometimes it's an associated illness that people don't realize has a Strong and again, 90% of your immune system is in your GI tract, so any inflammation or immune related issues, you probably have a gut problem as well.
So it sounds like you're saying you might think that your symptoms aren't related to those specific things, but they probably in reality are.
That's well said. Great summary.