Fennel (Foeniculum vulgare) is an aromatic herb that has been widely used as a spice and traditional medicine. It originated in the Mediterranean, but today it is cultivated all over the world. Fennel has a rich history of use because of its many nutritious properties. Since the time of Hippocrates, it was used as medicine.
Fennel seeds are a concentrated source of the minerals copper, potassium, calcium, zinc, manganese, iron, selenium, and magnesium. They're also high in vitamin C, vitamin A, as well as B complex vitamins B1, B6, B2, and niacin B3. The seeds contain powerful phytonutrients and antioxidants, most potent being anethole known for its anticancer, antimicrobial, and anti-inflammatory properties.
Fennel has a long history of use as a weight-loss aid. Fennel seeds are known to have been eaten during Lent and fasts to stave off hunger and stimulate movement in the digestive system. Fennel seed oil can help support weight loss because it can boost your metabolism while suppressing your appetite.
Also, fennel seeds have diuretic properties. They increase urine output and flush out the excess fluid from the body.