“Swallowed gum stays in your stomach for seven years”

The idea that a swallowed piece of gum will linger in your stomach for seven years is a widely circulated tale, often told by parents to deter children from ingesting the chewy treat. While the exact origin of this specific timeframe is unclear, it likely stems from a combination of adults trying to prevent their kids from swallowing non-food items and the common knowledge that gum itself is not digestible.

Scientifically speaking, your digestive system is far more efficient than the myth suggests. While the gum base, made of synthetic polymers and resins, cannot be broken down by your digestive enzymes, the rest of the gum's components like sweeteners and flavorings are digested. The indigestible gum base simply travels through your stomach, small intestine, and large intestine, much like other fibrous, indigestible materials you might consume, such as corn kernels or seeds. It typically exits the body in your stool within a few days, usually around 40 hours.

The persistence of this myth can be attributed to several factors. The sticky nature of gum makes it easy to imagine it adhering to internal organs, and a general lack of understanding about the robust capabilities of the digestive system contributes to its believability. Many people don't realize that our bodies regularly process and eliminate various indigestible substances without issue.