Although it’s not recommended, if you accidently swallow a piece of gum you’re chewing, you have little to worry about. Yes, many find gum fun to chew, but in certain instances, gum may actually be good for your gut. In an interview with Reader's Digest , certified dermatologist Dr. David Bank said that this is one of the best ways to intervene when it comes to nail biting in particular. I think your mother's warnings probably stemmed from the idea that chewing stimulates not just saliva in the mouth but also acid secretion in the stomach. But the human digestive tract can't digest the gum resin. Chewing gum is made of either natural or synthetic materials (gum resin), preservatives, flavorings, and sweeteners. Run your fingers under any picnic table at a park or movie theater seat, and you might find a wad of gum. There's no doubt about it that chewing nicotine gum is better than smoking cigarettes. And chewing gum has been popular since being marketed in the mid-1800s. Everybody knows how hard it is to break a bad habit, but there is an easy solution to help you stop smoking or chewing your fingernails — chew some gum instead! People have chewed some form of gum for thousands of years. The body can absorb sweeteners, such as sugar, and they can add up to a lot of calories if you chew a lot of sugary gum.