As long as chewing gum has been around, parents and teachers have been telling children not to swallow gum. Rumor has it, your body can’t digest gum, so it just sits in your stomach for seven years. Turns out, that’s only half-true. Some of the nutrients and the sugar from gum are absorbed into your small intestine. The indigestible part of the gum, just like other things your body can’t process, will pass through your system.