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The original was posted on /r/todayilearned by /u/ProjectIllustrious78 on 2025-03-24 05:00:00+00:00.

Original Title: TIL Commercial tea bags release millions of microplastics and nanoplastics when in use. For the first time, the study demonstrates how these particles can enter the bloodstream and travel throughout the body after being absorbed by human intestinal cells