Most Chewing Gum Is Essentially Plastic, Filling Your Mouth with Microplastics

Learn more about the tiny particles that can come off of your gum — what is essentially a soft piece of plastic — as you chew.

By Sam Walters
Mar 25, 2025 10:00 PMMar 25, 2025 9:54 PM
Chewing gum with particles
(Credit: artfotoxyz/Shutterstock)

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A mouthful of chewing gum might also be a mouthful of microplastics, according to the results of a small pilot study. The research, presented at the spring meeting of the American Chemical Society, suggests that a single piece of chewing gum could introduce as many as 3,000 microplastic particles into the saliva, positioning them for potential ingestion.

“Our goal is not to alarm anybody,” said Sanjay Mohanty, a study author and an engineering professor at the University of California, Los Angeles, according to a press release. “But we know we are exposed to plastics in everyday life, and that’s what we wanted to examine.”


Read More: Microplastics Are Everywhere. What Are They Doing to Our Health?

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