Fennel powder comes from the seeds of the fennel plant. People have used it for centuries to calm digestive disturbances. It helps the body expel gas and soothes bloating.
The seeds contain an essential oil rich in anethole. This compound relaxes the smooth muscles in the gut, reducing cramping and allowing trapped gas to pass. You can take 1 to 2 teaspoons of the powder (about 2 to 5 grams) stirred into hot water after meals.
Traditional use also includes encouraging breast milk production. Nursing mothers may drink fennel tea made from the powder. Avoid fennel powder during pregnancy, as high amounts can stimulate the uterus. Allergic reactions, though rare, can occur.