What mechanism of anethole is attributed to anise tea's relief of bloating and gas?

Relaxing effects on the smooth muscles of the gastrointestinal tract

The traditional practice of drinking anise tea to aid digestion, especially after substantial meals, is primarily attributed to the actions of anethole, the shared active compound. Specifically, anethole exerts relaxing effects on the smooth muscles located within the gastrointestinal tract. This relaxation helps to alleviate common digestive complaints such as persistent bloating, excessive gas formation, and general indigestion by allowing trapped gas to pass more easily and reducing cramping. Furthermore, the text notes that anise's inherent carminative (gas-relieving) properties, along with potential diuretic actions, contribute to an overall feeling of reduced abdominal discomfort and lightness following consumption.