If you consume Absinthe and are seeing green little men, you could potentially blame Fennel Seed. It is a vital ingredient in the making of the green alcohol and also a strong tasting spice that leaves a bittersweet aftertaste! Fennel seeds are used commonly in breads and doughs. They can also be found in curries and cheeses and certain countries chew sugar coated fennel seeds after their meals to help the digestion of food! Forget the Tums!