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Apr 14, 2026

What Are Microplastics and How Do They Enter the Body?

Following the EPA/HHS announcement, PolitiFact published an expert-backed guide on how microplastics enter the body through food, water, and air, which organs they accumulate in, and what the science says about health risks — drawing on interviews with leading researchers and synthesizing the current state of evidence.

Apr 14, 2026·2 sources
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Top claims

  • ▪A 2025 Nature Medicine study found more microplastics in the brains of people with dementia diagnoses
  • ▪A 2024 New England Journal of Medicine study found that people who had microplastics in their carotid artery plaque had a higher risk of heart attack, stroke or death following a surgical procedure to remove plaque than those whose plaque lacked microplastics
  • ▪Optical microscopes will not work for particles smaller than 1 micrometer

Subtopics

Environmental and Occupational Health1Environmental Protection Agency1Environmental regulation1Microplastics1Public health1

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