Best Health Advantages of Fennel Seeds 1. Promotes Healthy Digestive System The benefits of fennel seeds for digestive health are well recognized. They may aid in the relief of stomach cramps, gas, and bloating. The antispasmodic and anti-inflammatory qualities of anethole, fenchone, and estragole found in fennel seeds may help to soothe the digestive system. 2. Aids in Entire Respiratory...