r/VitaminD↗
Vitamin D Subreddit
Discuss vitamin D deficiency, optimal levels, sunbathing, and supplements. Check out the guide on our wiki.
20k subscribers246 posts / mo in Sep 2026 (incl. ~1% by known bots)187 authors / mosince 2015
r/VitaminD has 20k members (+51% over the last 12 months). It gets about 246 posts a month from 187 people. Top topics: MuscleHypertrophyTraining.
When to post on r/VitaminD
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How r/VitaminD has grown
Subscriber growth
Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/VitaminD
Top topics
Share of the subreddit's posts
- MuscleHypertrophyTraining0.1%
Brands people mention
Most-mentioned brands and sites, last 12 months
- Grassrootshealth
- ScienceDirect
- JAMA Otolaryngology
- MDPI
- Ancestry
Everything else about r/VitaminD
Posting rules and account requirements, how often posts get removed, who writes here (age, gender, countries), what people ask for, how they talk, and related subreddits — all in the full report.
Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research