I swallowed gum a few times, its harmless really. heres some information in a few paragraphs that should explain the result of swallowing gum.
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When Is Swallowed Gum a Problem?
Swallowing a large mass of gum, or many small pieces of gum over a short period of time, can block the digestive tract in rare cases. Blockage is most likely when gum is swallowed along with foreign objects, like coins, or when swallowed with nondigestible materials like sunflower seeds.
Little kids are most likely to be affected because they might not understand that gum is chewed, not swallowed.
But apart from these strange scenarios, swallowing an occasional piece of gum is harmless.
What Exactly Happens to the Gum?
Chewing gum is made of either natural or synthetic materials (gum resin), preservatives, flavorings, and sweeteners. 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. But the human digestive tract can't digest the gum resin. It's moved through the digestive tract by the normal pushing (peristaltic) actions of the gut. The gum's journey ends during a trip to the bathroom.
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Hope that helped. ^^