r/HumanMicrobiome is a subreddit with 46k members. The most common kinds of discussions are advice requests and pain & anger, 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
: "Glutamine powder fixed my IBS symptoms"
30 posts
#2
Pain & Anger
: "I f**d myself up with Sodium Butyrate. Need a plan to get out of this mess"
15 posts
#3
Solution Requests
: "Severe constipation for an entire month, no change in diet, magnesium and « usual » probiotics dont work like they used to all my Life - i eat prunes and fiber. PLEASE PLEASE HELP with suggestions"
8 posts
#4
News
: "Blue Light: Helpful by Day, Overrated as a Nighttime Disruptor"
6 posts
#5
Ideas
: "Try Symbiose, it is a kind of “self-care Tamagotchi” where you look after a tiny bacterium (your overall bug) that reacts and grow to your habits: food, sleep, stress, hydration, even stool type."
1 post
#6
Money Talk
: "Cost for Functional Medicine?"
1 post
Popular Topics in r/HumanMicrobiome
#1
Microbiome
: "Types of fiber and the Microbiome - A common misconception"
90 posts
#2
Gut
: "GABA: The Key to Better Sleep, Less Stress, and Gut Health"
55 posts
#3
Antibiotics
: "Positive Update on my GI System after taking Antibiotics 10 months Ago"
28 posts
#4
Probiotics
: "Consuming the right Probiotics (they are not all the same!) has been shown to benefit skin aging, metabolism, immunity, and more. In fact, certain bacterial strains exert specific health benefits that others do not. For more information, check out my article!"
28 posts
#5
Gut Health
: "How long does it take to fix your Gut Health?"
25 posts
#6
Probiotic
: "50-100billion Probiotic"
17 posts
#7
Fmt
: "Fmt via dog"
14 posts
#8
Health
: "Gut Microbiota and Metabolism: The Role of Diet in Health"
13 posts
#9
Sibo
: "Is Sibo real? Sibo vs dysbiosis? Debunking the Sibo hypothesis | Small Intestinal Bacterial Overgrowth"
12 posts
#10
Ibs
: "Glutamine powder fixed my Ibs symptoms"
8 posts
Flair Used in r/HumanMicrobiome
#1
Small intestine/upper GI
: "What is SIBO? What is the difference between SIBO and gut dysbiosis? How to diagnose SIBO? What is the best treatment for SIBO? Are SIBO treatments safe and effective? Everything to know about Small Intestinal Bacterial Overgrowth."
1 post
Member Growth in r/HumanMicrobiome
Yearly
+4k members(10.5%)
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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: June 16, 2026