Outcome map · Supplement
IBS symptoms: what the evidence supports
3 graded interventions for ibs symptoms, ranked by strength of evidence.
- Overall grade
- Grade B
- Last revised
- 3
- graded outcomes
- 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.
2 at grade B · 1 at grade C — 3 graded rows
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.
- ProbioticsEvidence grade B
Strain-dependent
Smallmixed
- Partially Hydrolyzed Guar Gum (PHGG)Evidence grade B
Both IBS-C and IBS-D
Moderatemixed
- Inulin / FOS (Prebiotics)Evidence grade C
Often worsens FODMAP-sensitive IBS
Unclearlow
What is uncertain
Read off the same rows as above. Nothing here is added that the entry does not itself record.
- Thin evidence: Inulin / FOS (Prebiotics) (grade C).
- Studies disagree: Probiotics (mixed agreement); Partially Hydrolyzed Guar Gum (PHGG) (mixed agreement).
The evidence in words
The evidence map
This is the ranked evidence for ibs symptoms: every compound in the knowledge base with a graded effect, best-supported first. Grades reflect replication and effect size, not popularity or marketing.
Best-supported
Probiotics (grade B) — Strain-dependent · Partially Hydrolyzed Guar Gum (PHGG) (grade B) — Both IBS-C and IBS-D
Weaker or unproven
Inulin / FOS (Prebiotics) (grade C) — Often worsens FODMAP-sensitive IBS
Goes with
- ProbioticsGrade BEvidence grade B
- Partially Hydrolyzed Guar Gum (PHGG)Grade BEvidence grade B
- Inulin / FOS (Prebiotics)Grade CEvidence grade C
Related reading
Entries that share this one's tags or conditions.
- Allergic rhinitis: what the evidence supports3 graded interventions for allergic rhinitis, ranked by strength of evidence.Evidence grade B
- Antibiotic-associated diarrhea: what the evidence supports2 graded interventions for antibiotic-associated diarrhea, ranked by strength of evidence.Evidence grade B
- Anxiety: what the evidence supports6 graded interventions for anxiety, ranked by strength of evidence.Evidence grade B
- Benign prostatic hyperplasia: what the evidence supports3 graded interventions for benign prostatic hyperplasia, ranked by strength of evidence.Evidence grade C
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.