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Peppermint Oil

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Peppermint Oil. Enteric-coated peppermint oil is a first-line antispasmodic for IBS.

How it works. Menthol blocks calcium channels in intestinal smooth muscle.

What the research supports. 1 graded claims. Strongest: Reduces IBS symptoms (strong).

How much to take. Typical dose: 180–225 mg enteric × 3/d.

Side effects and interactions. 1 medication interaction listed. No serious side effects listed at normal doses.

Stacking. Pairs well with A high-quality multivitamin, Omega-3 (EPA/DHA).

Common forms. Available as Enteric-coated capsule (e.g., IBgard).

Key studies. 8 studies cited. The strongest are listed with links to PubMed.

Community. Experiences from people who have tried Peppermint Oil. Anecdotes are not medical advice.

Peppermint Oil. Enteric-coated peppermint oil is a first-line antispasmodic for IBS.

Key compound: mentholC10H20O · 156.26 g/mol

What it is

Enteric-coated peppermint oil is a first-line antispasmodic for IBS.

Also called

Mentha piperitaEnteric-coated

Food sources

Mentha piperita

Goals

Gut Health

How it works

Menthol blocks calcium channels in intestinal smooth muscle.

Pathways

  • Ca-channel block in smooth muscle

Effects

  • ↓IBS pain and bloating decreases

What the research supports

Reduces IBS symptomsstrong

Strong: consistent results across large trials or meta-analyses. Moderate: several trials, mostly positive. Limited: small or mixed studies. Preclinical: animal or cell research only.

Typical dose
180–225 mg enteric × 3/d
TimingConsistent daily timing recommended; split larger doses if GI tolerance is a concern.
With foodEither with or without food.
Best formMost evidence is based on the enteric-coated capsule (e.g., ibgard) form.
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Side effects & interactions

Common side effects

  • Heartburn (non-coated)

Medication interactions

Antacidsmoderate

Dissolve enteric coating prematurely.

Check any supplement–medication combination with your pharmacist before starting.

Combines with

Pairs well

  • A high-quality multivitaminCovers micronutrient cofactors that support most supplement pathways.
  • Omega-3 (EPA/DHA)Foundational anti-inflammatory support that complements most regimens.

Common forms

  • Enteric-coated capsule (e.g., IBgard)

Key studies

8 studies cited in total.

Peppermint oil for irritable bowel syndrome ↗
Meta-analysis · J Clin Gastroenterol · 2014

Significantly reduced IBS symptom severity.

PubMed: Peppermint Oil — Reduces IBS symptoms ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Peppermint Oil and "Reduces IBS symptoms". Filter by RCT, meta-analysis, or year on the results page.

PubMed: Peppermint Oil — randomized controlled trial ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Peppermint Oil and "randomized controlled trial". Filter by RCT, meta-analysis, or year on the results page.

Discussion

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