Supplement Safety newsletters

NewsletterFIT tracks 3 newsletters that cover Supplement Safety as a primary topic, 2 of them with posts in the last 90 days. By publicly shown subscriber count, the largest are Dr. Michael Okun on Parkinson's & Brain Health (11K).

Updated Oct 31, 2026 · sorted by publicly shown subscribers · methodology

  1. 1
    Dr. Michael Okun on Parkinson's & Brain Health11K subscribers

    SubstackMonthly or less · last post 18 days ago

    Likely audience: Patients with Parkinson's disease

  2. 2
    Thrivers by Sharon Heng, MD—

    SubstackEvery two weeks · last post 16 days ago

    Likely audience: cancer patients

  3. 3
    5 Elements 4 Directions—

    Substacklast post Jan 27, 2026

    Likely audience: Acupuncturists

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