Peppermint oil is derived from the peppermint plant. It is commonly used as a flavor in foods and beverages, however, peppermint oil also has some beneficial health effects.
Clinical evidence has suggested that peppermint oil could help with symptoms of irritable bowel syndrome, indigestion, and spasms in the gastrointestinal tract. Next to that, it could reduce nausea, vomiting, and cramps. Peppermint oil is also used in cough and cold formulations.