Fennel, known as Foeniculum vulgare, is a plant in the Apiaceae family whose dried ripe fruit is used medicinally. There are two main types - sweet fennel contains more anethole which is used for its anti-cancer and anti-inflammatory properties, while bitter fennel contains more fenchone. Major chemical constituents include anethole, fenchone, limonene, and estragol. Fennel is used as a carminative to relieve gas, and its vitamin C, coumarin, and potassium content provide antioxidant, anti-coagulant, and bronchodilatory effects. Side effects are rare but can include nausea, vomiting, or all