Rumor has it that if you swallow chewing gum, it will stay lodged in your gut for seven years—a bezoar minus the magical poison-curing properties. Of course, as we’ve told you before, this isn’t true. But that doesn’t mean you have license to swallow your gum willy-nilly—or spit it on the ground, for that matter. The…
source https://lifehacker.com/the-real-reason-you-shouldnt-swallow-your-gum-1844883836