Fennel’s dried ripe seeds and oil are used to make medicine. Fennel is used by mouth for various digestive problems including heartburn, intestinal gas, bloating, loss of appetite, and colic in infants among othes. Widely used spice in India, called saunf (Hindi), fennel seeds, a delicious flavor for Indian dishes. In India, [fennel seeds] are routinely chewed upon after meals to aid in digestion after a rich meal while acting as an herbal mouth freshener. They help to overcome gas, cramps, acid indigestions, and many other digestive tract maladies.