r/B12_Deficiency
21k members
r/B12_Deficiency is a subreddit with 21k members. The most common kinds of discussions are pain & anger, and the community frequently discusses b12, symptoms, deficiency, injections, and struggling, and they frequently recommend/review multivitamin and needles.
A forum for people to discuss vitamin B12 deficiency of all causes, including Pernicious Anemia.
Popular Themes in r/B12_Deficiency
#1
Pain & Anger
: "B12 has really made me feel BAD!"
1 post
Popular Topics in r/B12_Deficiency
#1
B12
: "B12 has really made me feel BAD!"
194 posts
#2
Symptoms
132 posts
#3
Deficiency
: "newly diagnosed low B12"
115 posts
#4
Injections
85 posts
#5
Struggling
32 posts
#6
Advice
25 posts
#7
Supplements
23 posts
#8
B12 Deficiency
20 posts
#9
Iron
18 posts
#10
Anxiety
17 posts
Products Discussed in r/B12_Deficiency
Multivitamin
2 reviews
#1
Floradix
4.0★ from 1 review
#2
Smarty Pants
5.0★ from 1 review
Needles
1 review
#1
Amazon
4.0★ from 1 review
Flair Used in r/B12_Deficiency
#1
Deficiency Symptoms
: "I never would have guessed b12 deficiency"
47 posts
#2
Personal anecdote
: "Outburst of anger resolved !"
41 posts
#3
General Discussion
: "Why is vitamin B12 deficiency so dangerous?"
41 posts
#4
"Wake up" symptoms
: "Anyone else experience this"
23 posts
#5
Supplements
: "Immediate mood improvement after shots"
15 posts
#6
Help with labs
: "I’m having ALL the symptoms but Dr says I’m not deficient"
14 posts
#7
Cofactors
: "my neuromuscular doctor laughed when i brought up cofactors"
9 posts
#8
Success story
: "Update: 1.5 years after B12 repletion"
8 posts
#9
Research paper
: "The Vit E-B12 connection not talked about"
2 posts
Member Growth in r/B12_Deficiency
Yearly
+7k members(51.1%)
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About
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Last updated: June 15, 2026