r/Prebiotics is a subreddit with 4k members. The most common kinds of discussions are solution requests and advice requests, and the community frequently discusses prebiotics, fiber, gut, health, and microbiome.
Prebiotics. Welcome.
Popular Themes in r/Prebiotics
#1
Solution Requests
: "List of 800+ foods sorted by fiber content."
8 posts
#2
Advice Requests
: "Any good podcasts devoted to the gut microbiome?"
6 posts
#3
Pain & Anger
: "Does anyone else get very bad reflux when taking fiber supplement?"
1 post
#4
News
: "A Cheap Daily Supplement Appears to Boost Brain Function in Older People"
1 post
Popular Topics in r/Prebiotics
#1
Prebiotics
: "BREAKING NEWS: Complex plant fiber (intact plant cell walls) needed to maintain colonic mucus layer -- Prebiotics alone not enough!"
118 posts
#2
Fiber
: "Dietary Fiber Hierarchical Specificity: the Missing Link for Predictable and Strong Shifts in Gut Bacterial Communities (Jun 2021)"
98 posts
#3
Gut
: "Black Tea Alters Gut Microbiome in Anti-Obesogenic Ways [mice]"
95 posts
#4
Health
: "Which Gut Bacteria Are Associated With Poor Health, And How Can We Limit Them?"
81 posts
#5
Microbiome
: "Black Tea Alters Gut Microbiome in Anti-Obesogenic Ways [mice]"
73 posts
#6
Prebiotic
: "Prebiotics in irritable bowel syndrome and other functional bowel disorders in adults: a systematic review and meta-analysis of randomized controlled trials (Wilson et al., 2019)"
64 posts
#7
Gut Microbiota
: "Changes in stool frequency following chicory inulin consumption, and effects on stool consistency, quality of life and composition of Gut Microbiota (Nov 2019, n=30 adults)"
29 posts
#8
Inulin
: "Changes in stool frequency following chicory Inulin consumption, and effects on stool consistency, quality of life and composition of gut microbiota (Nov 2019, n=30 adults)"
26 posts
#9
Probiotic
: "what do you guys know about natural antibiotics? (garlic, onions etc) i feel like they are as important as pre/Probiotics"
25 posts
#10
Diet
: "Legumes: the most important Dietary predictor of survival in older people of different ethnicities."
20 posts
Member Growth in r/Prebiotics
Yearly
+245 members(6.7%)
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About
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Last updated: June 15, 2026