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r/VitaminD PUBLIC

Discussion of the sunshine vitamin, deficiency, and supplements. SEE RULES BEFORE POSTING.

17,243 members
Created: Sep 2015
Language: EN
POSITIVE SENTIMENT
Last analyzed: Jul 24, 2026 10:01
Marketing Summary

r/VitaminD is a PUBLIC community on Reddit with over 17,243 members. It currently has a positive sentiment with an engagement rate of 14.7%. With a community friendliness score of 80, this subreddit presents a high conversion potential for authentic brand participation. Strict rules against self-promotion are in place, so marketing should focus strictly on value-driven community engagement.

80
Friendliness Score
14.7%
Engagement Rate
100
Conversion Potential
2.0%
Monthly Growth
Marketing Analytics
13.1
Avg Post Score
23.3
Avg Comments
25
Brand Mentions
0
Posts/Hour
Top Post Types
text 100.0% (50)
Peak Activity Hours
Times shown in UTC (Coordinated Universal Time) Local times are automatically converted based on your browser's timezone
12AM UTC
High
~15 active
10AM UTC
Medium
~15 active
Community Culture
Community Sentiment POSITIVE
Friendliness Score: 80/100
51.9K
Avg User Karma of Top Posts
30%
Commercial Acceptance
Content Preferences
Moderation Patterns
Rules & Compliance
13
Total Rules
Images
Videos
Self Promotion
Require Flairs
Public
Posting Requirements & Restrictions
No limit
Minimum Karma
No limit
Min Account Age (days)
ANY
Submission Type
Enabled
Flair System
Subreddit Rules
  1. Review the “Beginner's Guide to Vitamin D” before submitting a post.: * [Here's everything you need to know to get started with vitamin D](https://www.reddit.com/r/VitaminD/wiki/faq/).
  2. Make your thread conducive to discussion.: * Include all the information you have, such as your vitamin D level, with units, and current dosage of supplements. * If asking a question about dosage, then include your height and weight. * Show an interest in constructive responses and not just reassurance. * Members invest their time to offer insight. Be prepared to answer clarification questions. * Posts with less than 200 characters of text (about five sentences) will be automatically removed.
  3. Focus on education about vitamin D.: * We do not provide professional medical advice. * Off-topic suggestions may be removed.
  4. Seek out high quality information.: * Anecdotes and theories are welcome, but refer to credible sources such as academic papers when possible. * Do not discourage seeking treatment from licensed medical providers or refer to alternative medicine.
  5. Contributions should add value.: * Stay civil
  6. name-calling. * Unhelpful remarks may be removed.
  7. Offer appropriate guidance regarding vitamin D supplements.: * Do not discourage use of D3 supplements or downplay the importance of vitamin D. * Do not recommend intentionally reaching a vitamin D level higher than 150 ng/ml (375 nmol/L) without medical supervision. * Discussing personal experiences or what works for you is permitted.
  8. Do not substitute AI content for your own.: * You may utilize AI as a research tool for a specific application or as an advanced search engine, but this should be disclosed. * Generic copying and pasting from or screenshots of content from popular LLM’s is not allowed. * Content which could have otherwise been written in normal language may be removed.
  9. No marketing.: * This includes affiliate links and promotions of monetized content, brands, products, services, or apps. * Sharing or self-promoting resources that add value is okay. * If you are unsure, then please ask via ModMail.
Marketing Data Updated
Jul 24, 2026
Rules Updated
Jul 10, 2026
Compliance Updated
Jul 10, 2026

What is r/VitaminD?

r/VitaminD is a public Reddit community created in September 2015 with over 17,243 members. Discussion of the sunshine vitamin, deficiency, and supplements. SEE RULES BEFORE POSTING.

The community has a positive sentiment and an engagement rate of 14.7%. With a friendliness score of 80, it is considered very welcoming to new members.

Self-promotion is not allowed, so marketing efforts should focus on providing genuine value to the community.

Frequently Asked Questions about r/VitaminD

r/VitaminD is a public Reddit community with 17,243 members. Discussion of the sunshine vitamin, deficiency, and supplements. SEE RULES BEFORE POSTING.

With a conversion potential of 100 and an engagement rate of 14.7%, r/VitaminD presents a strong opportunity for authentic brand participation. Self-promotion is not allowed, so focus on providing genuine value to the community.

r/VitaminD has 13 community rules.

r/VitaminD has an engagement rate of 14.7% with an average post score of 13.1 and an average of 23.3 comments per post. The community sentiment is positive with a friendliness score of 80 out of 10.
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