gut-brain axis newsletters

NewsletterFIT tracks 3 newsletters that cover gut-brain axis as a primary topic, 2 of them with posts in the last 90 days. By publicly shown subscriber count, the largest are Heather's IBS Newsletter - Help for Irritable Bowel Syndrome (63K) and Independent Medical Alliance (51K).

Updated Oct 30, 2026 · sorted by publicly shown subscribers · methodology

  1. 1
    Heather's IBS Newsletter - Help for Irritable Bowel Syndrome 63K subscribers

    Substack Every two weeks · last post 16 days ago

    Likely audience: health advocates

  2. 2
    Independent Medical Alliance 51K subscribers

    Substack Every two weeks · last post 14 days ago

    Likely audience: Health-conscious consumers

  3. 3
    Simple Medicines —

    Substack last post Nov 27, 2025

    Likely audience: health-conscious consumers

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