Licorice root could help gastritis and peppermint may reduce irritable bowel syndrome symptoms, but folk remedies touted for digestive ailments need to be approached with caution and skepticism, says dietitian Tamara Duker Freuman. Licorice probably will not help heal an ulcer and peppermint should not be taken by people who have trouble with heartburn, she says. Meanwhile, activated charcoal supplements reduce intestinal gas odor and aloe might help constipation short-term, but Freuman said all types of home remedies and natural products can have serious side effects and interactions.

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