Evidence brief · Supplement
Probiotics for IBS
Evidence grade B — Strain-specific
- Overall grade
- Grade B
- Last revised
- 1
- graded outcome
- 0
- references listed
Assembled by the app from other entries in this library. It adds no evidence of its own — follow the links to the entries it draws on.
1 at grade B — 1 graded row
What is known
Each outcome with its grade (how strong the evidence is, A to D), the size of the effect where the entry records one, and how often studies agree.
- IBSEvidence grade B
Strain-specific
Unclearmixed
What is uncertain
Read off the same rows as above. Nothing here is added that the entry does not itself record.
- Studies disagree: IBS (mixed agreement).
The evidence in words
The verdict
For ibs, Probiotics earns evidence grade B (unclear effect, mixed consistency) — there is real evidence here. Strain-specific
How it might work
Particular strains compete with pathogens, produce short-chain fatty acids and bacteriocins, and modulate gut immunity and barrier function — but these effects do not generalize across strains.
How to use it
Match the strain to the goal (e.g., S. boulardii around antibiotics), take separated from the antibiotic dose, and continue for a couple of weeks after a course.
Safety & cautions
Safe for most; use caution in the severely immunocompromised or critically ill, where invasive infections have rarely occurred.
Bottom line
Pick the strain trialed for your specific goal, not the biggest CFU number. Best for antibiotic-associated diarrhea and some IBS; skip generic 'gut health' blends.
How it is used
As the entry records it, from the studies it summarises. Not a recommendation for you — doses that suit a trial population may not suit you.
- Standard
- Strain matched to goal; separate from antibiotics.
Goes with
- ProbioticsRead the full Probiotics monographEvidence grade B
Related reading
Entries that share this one's tags or conditions.
- Probiotics for Antibiotic-associated diarrheaEvidence grade B — Specific strainsEvidence grade B
- Probiotics for IBS symptomsEvidence grade B — Strain-dependentEvidence grade B
- Peppermint Oil for IBSEvidence grade B — Enteric-coatedEvidence grade B
- Probiotics: dosage and how to take itStrain matched to goal; separate from antibiotics.Evidence grade B
Sources
This entry lists no references of its own — it is assembled from the entries it links to, whose sources are on their pages.
Last revised . A grade is this entry's reading of the evidence, not medical advice.