Gut health evidence brief
Enteric-coated peppermint oil can reduce global IBS symptoms and abdominal pain in adults, but the evidence applies to targeted IBS use, not general digestion claims.
IBS meta-analysis: 12 RCTs with 835 patients found peppermint oil superior to placebo for global symptoms and abdominal pain.
Trials usually use enteric-coated capsules before meals for short periods; ordinary peppermint tea or essential oil is not equivalent.
Can worsen reflux or cause heartburn. This evidence applies to oral-use capsules, not general essential-oil ingestion.
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