What Your Body Can—and Can’t—Digest
Chewing gum is made partly from a gum base: a chewy material that resists saliva and the digestive enzymes that break down food. Your body can absorb some of the gum’s sweeteners and flavorings, but it cannot meaningfully digest that base. That is why gum stays chewy in your mouth long after its flavor fades.
It Keeps Moving Through the Gut
After you swallow it, the gum travels with the rest of the stomach’s contents into the small intestine and then through the large intestine. Muscular contractions push material along, while the gut absorbs nutrients and water. The gum base remains largely intact and is eventually passed in a bowel movement, usually within a few days—not left behind to accumulate for seven years.
A swallowed piece generally causes no problem. The uncommon concern is swallowing a large amount, especially for a young child, because a mass of gum can contribute to an intestinal blockage. But for an ordinary piece, the digestive system’s conveyor belt is enough: it carries the indigestible gum out rather than storing it in the stomach.
