Mint eliminates irritable bowel syndrome br The antispasmodic properties of this plant make mint a good natural remedy for irritable bowel syndrome, which is characterized by unpredictable colic, indigestion, and constipation (or diarrhea). br In Taiwan, a study was conducted in which patients with irritable bowel syndrome were given peppermint oil capsules 15 to 30 minutes before meals. br This significantly reduced the likelihood of flatulence and bloating.