If you swallow Chewing Gum, it doesn't pass through the digestive system for seven years.

The statement that swallowed chewing gum stays in the digestive system for seven years is a common myth. In reality, chewing gum passes through the digestive system at the same rate as other food materials - typically within a few days. While gum base is not digestible, the body eliminates it through normal bowel movements. The seven-year figure has no scientific basis.