Conclusion: We also mapped the contributors to important obesity-associated functional shifts and observed that these are both dataset-specific and shared across the datasets. In summary, a comprehensive analysis of diverse datasets unveils species specifically contributing to functional shifts and consistent gut microbial patterns associated to obesity.
PubMed 38265338 ↗Bifidobacterium Longum
People mainly take Bifidobacterium Longum for anxiety, mood, digestion. Based on 4 first-hand reports and 35 meta-analyses & systematic reviews in the medical literature. Ranked #2007 of 4,149 overall.
Of reports that state an outcome, 100% are positive.
What Bifidobacterium Longum does, according to users
Of the people who reported each effect, the share who said it got better.
What the research says
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
3+ meta-analyses or systematic reviews and 10+ randomized controlled trials in humans. The grade measures how much human research exists — read the conclusions below for what it found.
Conclusion: The available evidence is very uncertain about the efficacy or safety of probiotics, when compared with placebo, for induction of remission in Crohn's disease. There is a lack of well-designed RCTs in this area and further research is needed.
PubMed 32678465 ↗Conclusion: Evidence suggests that use of probiotics is associated with a reduction in the incidence of VAP. However, the quality of the evidence is low and the exclusion of the one study that did not provide a robust definition of VAP increased the uncertainty in this finding. The available evidence is not clear regarding a decrease in ICU or hospital mortality with probiotic use. Three trials reported on the incidence of diarrhoea and the pooled results indicate no clear evidence of a difference. The results of this meta-analysis do not provide sufficient evidence to draw conclusions on the efficacy and
PubMed 25344083 ↗Conclusion: The current study demonstrated that some bacteria were identified as regulators of OA. Future works following standardized methodologies with more proper controls are needed to elucidate our understanding of the role of the microbiota in OA pathogenesis and progress towards new treatments.
PubMed 34958936 ↗Dosage people report
As stated by users — not a recommendation. Follow the label or your doctor.
Reported side effects
How often each side effect came up across all reports.
What users say
First-hand experiences, quoted verbatim. We show one positive and one negative where both exist.
Top discussions (4)
- Probiotics as a treatment for depression and anxiety possibly affecting serotonin and GABA levels. ↗
- Do probiotics have some nootropic or mood enhancing effect? Which ones? ↗
- Interesting strong nootropic effect from probiotics ↗
- "Fix your gut?".....but nobody knows what it means beyond vibes and fiber ↗
Other options for anxiety
User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 3, 2026. How we rate