Reviewed records available

Peppermint

Mentha × piperita

Peppermint tea and oral peppermint-oil products are different exposures. The reviewed evidence card covers oil formulations used in IBS trials. It found a symptom signal and more adverse events, while rating the evidence very low quality.

Evidence snapshot reviewed October 16, 2026

Check the botanical identity in the Plant Atlas →

Botanical identity

Which plant this profile means

This profile is tied to Mentha × piperita. Other mints, peppermint leaf, and concentrated essential oil remain distinct preparations.

Scientific name
Mentha × piperita
WCVP taxon ID
125188
Atlas record
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Preparation boundaries

Same plant, different exposure

These forms stay separate in the evidence bank. A result for one cannot be copied onto the others.

tea or infusion

leaf · Taken by mouth

Peppermint leaf or tea is not equivalent to concentrated peppermint essential oil.

Mixed preparations

leaf and flowering-part essential oil · Taken by mouth

IBS findings map only to the studied oral oil formulations. They do not transfer to tea, food flavoring, inhaled oil, or topical oil, and the source abstract does not prove every included product used the same coating or release system.

Research-bot status

Some evidence cards are public. The rest of the queue isn’t.

The reviewed cards below cleared a separate publication check. The remaining candidate extractions stay private until their source, wording, and preparation match are reviewed.

Sources in review
1
Possible claims found
2
Still awaiting review
0
Blocked source
0

Research connections

What this ingredient has been studied around

Reviewed evidence

1 source-linked record

Evidence synthesis Promising, with limits 10 trials with 1,030 people who had IBS

Oral peppermint-oil products for IBS: a signal with very low certainty

Across ten trials, oral peppermint-oil products outperformed placebo for overall IBS symptoms and abdominal pain. Adverse events were also more common. The reviewers rated the evidence very low quality, and the abstract does not establish that every product used the same coating or release system.

What was studied
Oral peppermint-oil formulations used in IBS trials; not peppermint tea, food flavoring, inhaled oil, or topical oil
Setting
Studied alone
Why it ranks here
The pooled symptom results favored peppermint oil, but the uncertainty was wide, adverse events increased, and the reviewers judged the evidence very low quality.
Limits and cautions
  • The review rated the overall evidence very low quality.
  • The confidence interval around the number needed to treat for global symptoms was very wide.
  • Any adverse event was more frequent with peppermint oil than with placebo.
  • The abstract does not list all adverse-event types or severities.
  • Coating and release system can affect where the oil is released and how well it is tolerated.

This card does not recommend swallowing peppermint essential oil or improvising a product. Persistent pain, bleeding, weight loss, fever, or a major change in bowel habits needs medical evaluation.

Profile sources

Read the source material