What if you swallowed chewing tobacco?

Gum is made of Flavor, corn syrup, and gum base. the gum base is what makes the gum chewy. All the ingredients of gum are digestible, except gum base. Gum base just simply passes through your system just like popcorn. It normally digests within a few days.

When people say it will sit in your stomach for seven years, it is incorrect. That is just an old wives-tail.
If you swallow Chewing Gum, it goes through your digestive tract whole until it is excreted as it cannot be digested.