Synopsis

Source of validity: Scientific
Rating (out of 5): 4

Peppermint Essence for Indigestion: Scientific Evidence

Peppermint (Mentha × piperita) has a long history of use for digestive ailments, and its essential oil is commonly used in the management of indigestion (dyspepsia) and related symptoms. The primary mechanism attributed to peppermint is its antispasmodic effect on the smooth muscles of the gastrointestinal tract, largely due to its main active ingredient, menthol. Multiple clinical trials and systematic reviews support the use of enteric-coated peppermint oil capsules in relieving symptoms of functional dyspepsia and irritable bowel syndrome (IBS), including bloating, abdominal pain, and discomfort—symptoms that overlap significantly with indigestion.

A 2019 meta-analysis published in BMC Complementary Medicine and Therapies found that peppermint oil was effective in reducing global symptoms of functional dyspepsia compared to placebo. The British Society of Gastroenterology and the American College of Gastroenterology include peppermint oil as a recommended option for symptom relief in IBS and functional dyspepsia. The evidence is strongest for enteric-coated formulations to avoid reflux and ensure delivery to the intestines.

While the majority of studies focus on peppermint oil rather than "essence" specifically, the active principles are similar. However, individuals with gastroesophageal reflux disease (GERD) or hiatal hernia should use caution, as peppermint can relax the lower esophageal sphincter and potentially worsen reflux symptoms.

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