Medical benefits from gum? You better believe it! Studies show that gum chewing is can help fight the development of cavities by stimulating the production of acid-neutralizing saliva. Xylitol, a common gum ingredient, has been shown to have more specific cavity-fighting properties, as well. It can also, as noted above, help to fight bad breath.
Gums available in Europe and Asia have ingredients like green tea extract, calcium and other nutritional supplements that would typically be found in a vitamin pill. Some children's gums already contain Vitamin-C, for instance. In addition to replacing vitamin pills and supplements, some doctors are considering gum as an alternative to pill-forms of prescription medicines because they would make medicine so easy to "take." Of course, the overall effectiveness of such a plan has not yet been thoroughly tested, although it is known that many substances are very easily absorbed through the gums, but because gum "can contain as many as 70 ingredients" it is certainly possible for thousands of different formulations to be put together.