Which adverse effect is associated with Peppermint?

Peppermint is commonly used for its soothing properties, particularly in alleviating digestive discomfort. However, one of its known adverse effects is heartburn. This occurs because peppermint can relax the lower esophageal sphincter, which may lead to the reflux of stomach acid into the esophagus, causing that characteristic burning sensation in the chest commonly associated with heartburn.

In some individuals, this relaxing effect can exacerbate symptoms of gastroesophageal reflux disease (GERD), leading to more frequent occurrences of heartburn after consumption. This understanding of peppermint's mechanism in the gastrointestinal tract highlights why heartburn is clearly identified as an adverse effect.

While other options may seem plausible, the connection between peppermint and heartburn is supported by physiological evidence, making it a recognized concern in both clinical practice and patient education regarding peppermint usage.