Best Health and Fitness Newsletters in 2026

NewsletterFIT tracks 3 newsletters that cover Health and fitness as a primary topic, all with posts in the last 90 days. By publicly shown subscriber count, the largest are Lethal Gentlemen's Manifesto (14K) and Nina Stibbe's Diary (2K).

Updated Nov 4, 2026 · sorted by publicly shown subscribers · methodology

  1. 1
    Lethal Gentlemen's Manifesto14K subscribers

    SubstackEvery two weeks · last post 9 days ago

    From recent posts: Lethal Gentlemen's Manifesto publishes articles on fitness, nutrition, and business philosophy for men focused on self-improvement and performance. The publication covers topics such as athletic training, flexible…

    Likely audience: Entrepreneurs and business owners

  2. 2
    Nina Stibbe's Diary2K subscribers

    SubstackMonthly or less · last post 30 days ago

    From recent posts: Nina Stibbe's Diary publishes weekly diary-style columns and contributor anecdotes covering personal relationships, travel, and cultural commentary. The publication mixes lifestyle observations with political news and…

    Likely audience: Cultural enthusiasts

  3. 3
    Real Talk Fitness, Running & Wellness by Amanda Katz—

    SubstackEvery two weeks · last post 23 days ago

    A body neutral strength & run coach exercising real talk, real fun tips and tricks to make fitness more accessible.

    Likely audience: Marathon runners

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