It sounds unbelievable, almost like a headline designed to shock rather than inform. But research suggests that the average human are ingesting the equivalent of a credit card’s worth of microplastic every single week.
Let that sink in for a moment.
How does microplastic end up in our bodies?
Microplastics, tiny particles less than 5 millimeters in size, are now everywhere. They’ve been found in our oceans, our soil, our air, and even in the food we eat and the water we drink. Over time, these particles make their way into our bodies through everyday consumption.
From seafood and salt to bottled water and even fresh produce, plastic contamination has quietly become part of our daily lives.
The “credit card” comparison
The idea that we consume a credit card’s worth of plastic each week comes from research conducted by the World Wide Fund for Nature (WWF), based on a study by the University of Newcastle. Their findings estimated that humans ingest up to 5 grams of plastic per week - roughly the weight of a credit card.
While the exact amount can vary depending on lifestyle, geography, and diet, the comparison helps illustrate the scale of the problem in a simple and powerful way.
Why this matters
We’re only beginning to understand the long-term effects of microplastics on human health. Studies have shown that microplastics can enter the bloodstream and may accumulate in organs, raising concerns about inflammation and potential impacts on the immune system.
Organizations like the World Health Organization have highlighted that more research is needed, but the widespread presence of microplastics is already a cause for concern.
What is clear, however, is that plastic pollution is no longer just an environmental issue, it’s a human one.
What can we do?
While the problem is global, individual and collective actions still matter:
- Choose plastic-free or low-plastic alternatives when possible
- Reduce single-use plastics in everyday life
- Support companies that prioritize sustainable materials
- Advocate for stronger environmental policies
Small changes, when multiplied across millions of people, can lead to significant impact.
A turning point
The idea of “eating a credit card a week” may sound extreme, but perhaps that’s exactly what we need: a wake-up call.
Because the truth is, plastic isn’t just something we throw away anymore. It’s something we carry with us - literally.
And that makes the need for change more urgent than ever.
Sources
- World Wide Fund for Nature (WWF), “No Plastic in Nature: Assessing Plastic Ingestion from Nature to People” (2019)
- University of Newcastle, study on microplastic ingestion (commissioned by WWF, 2019)
- World Health Organization, Microplastics in Drinking Water (2019)
