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Bottom line: Microplastics are circulating in human blood. A 2022 Dutch study found plastic particles in 77% of healthy adult blood samples — the first time this has been measured. You can’t eliminate exposure, but you can meaningfully reduce it.

What They Found

  • 17 out of 22 healthy adult donors had detectable plastic particles in their blood
  • PET (drink bottles, food packaging) was the most common plastic detected
  • Polystyrene (disposable food containers) and polyethylene (carrier bags) were also found
  • Concentrations varied significantly between individuals — suggesting lifestyle and exposure differences matter
  • A follow-up study found microplastics in human placental tissue, confirming these particles reach organs

What You Can Do

  1. Stop heating food in plastic — switch to glass or ceramic containers for microwaving and storage
  2. Filter your drinking water — a reverse osmosis system removes over 99% of microplastics
  3. Choose natural-fiber clothing when possible — synthetic fabrics shed microplastic fibers with every wash

Read the full analysis: Microplastics in Human Blood: What the Science Says and How to Protect Yourself

Frequently Asked Questions

Are microplastics in blood dangerous?
We don’t yet have large human outcome studies linking blood microplastic levels to specific diseases. Animal studies show inflammation, metabolic disruption, and reproductive harm from chronic exposure. The precautionary case for reducing exposure is strong even without definitive human data.
How do microplastics get into your blood?
The main routes are ingestion (food, drink) and inhalation. Microplastics in food and water pass through the gut wall into the bloodstream. Airborne particles — from synthetic textiles, packaging, and outdoor pollution — are inhaled and absorbed through lung tissue.
Can you remove microplastics from your blood?
No reliable method for removing microplastics from the bloodstream currently exists. The practical strategy is to reduce ongoing exposure: filter drinking water with a reverse osmosis system, avoid heating food in plastic, and switch to natural-fiber clothing and glass food storage.

This article is for informational purposes only and does not constitute medical advice.

Source: Leslie, H.A. et al., “Discovery and quantification of plastic particle pollution in human blood,” Environment International, 2022. DOI