r/VitaminD is a subreddit with 17k members. The most common kinds of discussions are advice requests and pain & anger, and the community frequently discusses vitamin d, deficiency, levels, symptoms, and supplementation, and they frequently recommend/review vitamin and sleeping pills.
Discussion of the sunshine vitamin, deficiency, and supplements. SEE RULES BEFORE POSTING.
Popular Themes in r/VitaminD
#1
Advice Requests
: "Could a vitD level of 7 be wrecking my hormones?"
12 posts
#2
Pain & Anger
: "My Symptoms for Being Deficient for too long"
1 post
#3
Self-Promotion
: "I built an iPhone app that calculates how much vitamin D you produce from the sun every day: looking for people to test it"
1 post
Popular Topics in r/VitaminD
#1
Vitamin D
: "Vitamin D deficiency and skin problems?"
165 posts
#2
Deficiency
: "Mild Deficiency Anecdote - 3 months of testing - 18.6 to 28 ng/ML"
53 posts
#3
Levels
: "Can I still feel like garbage after my Levels are good?"
47 posts
#4
Symptoms
: "Could vitamin D ‘insufficiency’ explain all of these Symptoms?"
39 posts
#5
Supplementation
: "Success with Supplementation and sunshine!"
28 posts
#6
Struggling
14 posts
#7
Magnesium
: "Severely deficient at 3.9 ng/ml — questions about dosing, Magnesium, and when to retest"
14 posts
#8
Supplements
12 posts
#9
Vitamin D Levels
: "Are my Vitamin D Levels Insufficient?"
10 posts
#10
Low Levels
6 posts
Products Discussed in r/VitaminD
Vitamin
11 reviews
#1
Dr. Berg
4.0★ from 2 reviews
#2
Sports Research
5.0★ from 1 review
#3
Bestvite
5.0★ from 1 review
Sleeping Pills
1 review
#1
Melatonin
3.0★ from 1 review
Flair Used in r/VitaminD
#1
Please Assist
: "Doctor told me to stop taking vitamin D"
116 posts
#2
Personal Experience(s)
: "So it was just vitamin d all along."
56 posts
#3
Success Story
: "50 points up in 8 weeks! I refused to follow my PCP’s 50k weekly prescription and ran my own protocol instead. I can’t believe they’re still prescribing D2 these days."
6 posts
#4
Research
: "I'm gonna go ahead and reduce my vitamin D intake"
4 posts
#5
Resource
: "I built an iPhone app that calculates how much vitamin D you produce from the sun every day: looking for people to test it"
4 posts
#6
Recurring
: "Share Your Progress & Discuss Adjacent Topics"
4 posts
#7
Empirical Discussion
: "What form of magnesium is best for relaxation besides bisglycinate?"
2 posts
Member Growth in r/VitaminD
Yearly
+5k members(43.8%)
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About
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Last updated: June 30, 2026