Foeniculum vulgare, commonly known as fennel, is a flavorful culinary herb and medicinal plant. Fresh fennel bulb is a good source of vitamin C, a water-soluble vitamin critical for immune health, tissue repair, and collagen synthesis. Fennel and fennel seeds provide important nutrients, such as vitamin C, calcium, magnesium, potassium, and manganese. Fennel seeds pack a lot of fiber in their tiny forms. This may help get rid of bacteria that can cause gassiness in cases of food poisoning or an upset stomach. Fennel seeds also reduce inflammation. This may help soothe swelling or irritation in the intestines and improve digestion. Fennel seeds may also relax muscles in the intestines, which can help relieve constipation. Soothing muscles in the stomach and intestines helps to relieve gassiness that’s from constipation or acid reflux. Anethole is the main component that gives fennel seeds these beneficial effects.