Wheat Free Bone-A-Mints like all N-Bone products is edible, digestible and water soluble to help prevent obstruction of the esophagus and intestines. Bone-A-Mints Wheat Free removes plaque, tartar and freshens breath for unbeatable triple action power. Peppermint, parsley, fennel, dill and chlorophyll freshens breath while tricalcium phosphate is used to remove plaque and tartar during chewing. Now there is an "Everyday" breath freshening treat for companions withallergies to wheat.