r/HumanMicrobiome is a subreddit with 46k members. The most common kinds of discussions are advice requests and news, and the community frequently discusses microbiome, gut, antibiotics, probiotics, and gut health.
This sub is a haven from the flood of misinformation that is widespread on Reddit and over much of the internet. We have an evidence-based focus on the complex ecosystem in our guts that regulates the entire body.
Popular Themes in r/HumanMicrobiome
#1
Advice Requests
: "Advice on testing"
5 posts
#2
News
: "The top new and updated threads in the last week on the Human Microbiome Forum"
3 posts
#3
Pain & Anger
: "When food triggers everything, could the act of eating be part of the problem?"
2 posts
Popular Topics in r/HumanMicrobiome
#1
Microbiome
: "The top new and updated threads in the last week on the Human Microbiome Forum"
90 posts
#2
Gut
: "Gut issues / histamine / weight loss = im lost"
55 posts
#3
Antibiotics
: "Diarrhea after taking Antibiotics for 2 weeks"
28 posts
#4
Probiotics
28 posts
#5
Gut Health
: "Gut Health issues that won't go away"
25 posts
#6
Probiotic
17 posts
#7
Fmt
14 posts
#8
Health
: "The top new and updated threads in the last week on the Human Microbiome Forum"
13 posts
#9
Sibo
: "Tobacco and Sibo"
12 posts
#10
Ibs
8 posts
Member Growth in r/HumanMicrobiome
Yearly
+4k members(10.2%)
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About
GummySearch helps people research Reddit communities by organizing activity, growth, themes, and post-level signals into one place.
This page gives a focused view of r/HumanMicrobiome, including current member size, discussion patterns, product reviews, and related communities to explore.
This data is synced periodically so insights stay current and useful for ongoing research.
Last updated: July 12, 2026