Supplement evidence

081 / 575Digestive support

Enteric-coated peppermint oil

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The short answer

Enteric-coated preparations can reduce global IBS symptoms and abdominal pain in the short term.

Evidence and scope: Supported for specific outcomes
This status does not grade the ingredient for every goal, outcome, or person.
Important limitation: Evidence supports a specific outcome, not a general wellness or longevity effect.
Before deciding: Key concern: Can worsen reflux; avoid with hiatal hernia, bile-duct disease, and medicines that dissolve enteric coatings.

01 / PRACTICAL GUIDE

Dose, absorption, and combinations

These are indication-specific reference or studied ranges—not a personalized prescription. Start with the objective, then check the form, label, medicines, and health conditions.

Reference range by objective

Meal-specific digestion180–225 mg enteric-coated oil two or three times daily before meals

Reference or studied range—not a personalized prescription. The product label or a clinician may specify a different dose.

Dose source ↗

More is not automatically better. A clinician or product label may specify a different amount.

Absorption / solubilityFat-soluble / lipid-based

Fat-soluble or lipid-based. Absorption generally improves with a meal containing fat.

How it is commonly taken

Swallow capsules whole before meals.

Do not combine casually

Can worsen reflux; avoid with hiatal hernia, bile-duct disease, and medicines that dissolve enteric coatings.

Dose and use source ↗

Dose and use links lead to primary or official source material. Search links are discovery tools, not proof that every returned paper applies.

02 / EVIDENCE

What the research says

We keep supportive, mixed, negative, safety, and contextual findings together. The headline never replaces the underlying papers.

2research papers in this ledger

10unique primary studies represented

1,030unique participants represented

These are audited counts for this JIVANA collection, not search-result totals. Participants are counted once when multiple papers use the same cohort; review papers are not added again to participant totals.

Open the research timelineResearch timeline

Entries are ordered by publication year. A study period appears only when the source reports it.

2022

Mixed or qualifiedPMID 35942669

Efficacy of peppermint oil in irritable bowel syndrome

Pooled results favored peppermint oil for global symptoms (estimated NNT 4) and pain (NNT 7), but adverse events were more frequent and the evidence was rated very low quality.

Published: 2022n=1,030 participants10 primary studies represented

Study design and methods

Design: Systematic review and meta-analysis of 10 randomized trials
Population: 1,030 adults with irritable bowel syndrome
Intervention: Peppermint oil versus placebo; formulations and dosing varied
Outcome: Global IBS symptoms, abdominal pain, adverse events, and reflux

Open research record ↗

2020

Does not support the tested claimPMID 31470006 · NCT02716285

Efficacy and safety of peppermint oil in irritable bowel syndrome

Neither formulation met the prespecified pain-response or overall-relief endpoints. Small-intestinal release improved some secondary scores, while mild adverse events were more common. This trial is included in the 2022 meta-analysis and is not counted twice.

Published: 2020Duration: 8 weeks

Study design and methods

Design: Randomized, double-blind, placebo-controlled multicenter trial
Population: 190 adults with Rome IV IBS; 189 included in intention-to-treat analysis
Intervention: Small-intestinal-release or ileocolonic-release peppermint oil 182 mg versus placebo
Outcome: Regulatory abdominal-pain response, overall symptom relief, secondary symptom scores, and adverse events

Open research record ↗

Unscreened discovery appendix—not evidence22 candidate publicationsSearch run: Aug 21, 2026

Complete for the displayed PubMed query at the search timestamp—not for all databases or every possible synonym. Candidates can be irrelevant, duplicate the same study, or report negative findings. They are never summed as evidence or participants until screened.

03 / SOURCES

Start with the source material

Official evidence overviewPubMed bounded human-evidence search Live PubMed discovery searchNational Library of Medicine

The live search is for discovery only. Search-result counts change and are not included in the audited totals above.

Recent PubMed discovery recordsDirect links to the first 12 records returned by the reproducible search. These are discovery candidates—not reviewed summaries or a count of supportive findings.

04 / EXPERT CONTEXT

Expert context—not evidence

Expert positions are dated context—not scientific evidence. They never raise the evidence status or become consensus by repetition.

No direct, source-verified endorsement is currently recorded. Research authorship or discussion alone is not treated as endorsement.