Fennel contains a lot of fibre, vitamin C, potassium and an anti-fungal, antibacterial essential oil called anethole. It is helpful for indigestion and spasms of the digestive tract. Fennel acts as an antioxidant and helps keep blood pressure down.
#Fun Fact: Fennel has been known as a medicinal herb all throughout history. The Greek philosopher Hippocrates used it in medicine, and the Romans believed it could control obesity. (which turns out to be right, as the seeds are proven to suppress appetite).