English Horsemint

BotanicalBest with a meal

What is it

English horsemint (Mentha longifolia) is a perennial mint species native to Europe and Asia, used in traditional medicine for digestive complaints and as an aromatic.

Evidence for 1 use

AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.

Digestive comfort / aromatic (traditional)

Mixed Evidence

Traditional use as an aromatic and mild digestive aid. Controlled clinical evidence specifically on Mentha longifolia is limited.

How it works

Mentha longifolia essential oil contains menthone, pulegone, and other terpenes. Like other mint species, it has antimicrobial, antispasmodic, and aromatic effects. Pulegone content is a notable safety consideration as it can be hepatotoxic at high doses. Clinical evidence specifically on horsemint is limited; most modern mint research focuses on peppermint (Mentha x piperita).

Dosage

There is no RDA. Traditional culinary or tea use is small. Concentrated essential oil should be avoided. DSLD does not provide a median dose for this entry.

When and how to take it

Used as a tea or culinary herb with meals. Avoid concentrated essential oil ingestion.

1 commercial form

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Mentha longifolia leaf / extract

Used in herbal teas and traditional remedies.

Composition varies by harvest and processing; pulegone content matters for safety.

Safety

Culinary use is well tolerated. The pulegone content of Mentha longifolia oil is a concern; high or chronic oral doses of pulegone-rich mint oils have caused liver toxicity.

Who should be cautious

Avoid concentrated horsemint essential oil in pregnancy, breastfeeding, and liver disease. Use culinary amounts only without specific guidance.

Interactions

No major clinically documented interactions at culinary doses. High-dose mint oils could theoretically affect liver-metabolized drugs.

Frequently asked questions

Is English horsemint the same as peppermint?⌄

No. They are different mint species; peppermint has been studied more extensively for digestive uses.

Is pulegone dangerous?⌄

At high concentrations or chronic ingestion, yes. Culinary use of pulegone-containing mints is generally safe; concentrated oils should be avoided.

References

English Horsemint on Wikidata — Wikidata link

English Horsemint on NIH DSLD (US supplement label database) — NIH Dietary Supplement Label Database link

Research on English Horsemint (PubMed search) — PubMed link

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Evidence-based·How we grade evidence

Disclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.