That’s not surprising given this.

Which foods contain microplastics?

“They’re in everything you eat or drink,” says Mason. But the largest dietary source of microplastics can be found in drinking water. One 2018 study by Mason and her team discovered plastic particles in 93% of bottled water samples. Another from the year before found 83% of tap water samples from around the world contained microplastics. (The United States was the worst off, with a 94% rate of tap water contamination.)

Human plastic waste can also be found throughout the marine environment. It’s present on a macro level: in the form of huge, churning trash heaps in remote parts of the ocean and as particulate matter embedded into the ocean floor. But also more acutely: in the flesh of many species of fish, like mackerel and anchovies, and mollusks.

Other studies have found microplastics in beer, wines with polyethylene stoppers, rice, table salts, and honey. Microplastics can even be found in fruits and vegetables—like apples, broccoli, and carrots—with plants able to absorb nanoplastics through their root systems. And plastic tea bags are leaching billions of particles every time you make a cup of Earl Gray.

Likewise, “anything that has been packaged in plastic is going to have plastic in it,” says Mason. And it’s almost impossible to eat a meal without ingesting particulate matter. “There’s plastic in the air,” says Mason, which can potentially settle on everything it comes in contact with.