Herbs like thyme and cloves may help flatten your
belly. “Olfactory receptors in your gut cells respond to certain scents by dramatically increasing the production of serotonin, a neurotransmitter that helps regulate digestion,” Hatt says. Just inhaling them, however, may not be enough to do the trick, he adds. Instead, try drinking thyme tea or chewing on a few cloves whenever you feel bloated in order to keep your GI system running smoothly.