Best Thyroid Health Newsletters in 2026

NewsletterFIT tracks 3 newsletters that cover Thyroid health as a primary topic, 2 of them with posts in the last 90 days. By publicly shown subscriber count, the largest are Healing The Source (70K).

Updated Nov 6, 2026 · sorted by publicly shown subscribers · methodology

  1. 1
    Healing The Source70K subscribers

    SubstackWeekly · last post 4 days ago

    I’m a certified FDN-P & founder of Healing The Source. I take a balanced, root-cause approach to wellness, and after healing my nervous system (plus an exhaustive list of symptoms), I’m here to help you do the same…

    Likely audience: health-conscious individuals

  2. 2
    derekpruski—

    SubstackDaily · last post 6 days ago

    From recent posts: Derek Pruski publishes a weekly newsletter focused on metabolic research, weight loss mechanisms, and clinical trial updates for individuals interested in biohacking and physiological optimization. The content mixes…

    Likely audience: People transitioning from fat loss to bulking

  3. 3
    The Hypothyroidism Corner—

    Substacklast post Mar 15, 2026

    For Those Navigating Life With Hypothyroidism.

    Likely audience: people managing chronic conditions

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