The invisible contaminants in your vegetables: Study outlines NANOPLASTICS being detected in radishes

09/27/2025 / By Patrick Lewis

A study has found that nearly five percent of polystyrene nanoplastics exposed to radish roots were retained in the root system after five days.
Of that retained amount, ~25 percent moved into the fleshy, edible root (the bulb) and ~10 percent reached the leaves.
The study used hydroponically grown radishes exposed only by their underground roots to radiolabelled nanoplastics, ensuring any plastic in edible tissues had moved internally.
These findings show nanoplastics can cross the plant’s Casparian strip, a natural barrier previously thought to block such tiny particles.
The study raises concerns about food safety, as edible parts of vegetables may contain nanoplastics that washing and peeling cannot remove.

You scrub that fresh radish in the sink, trusting that rinse will wash away dirt, perhaps even lingering pesticide residue. What you probably don’t realize is that some contaminants may already be inside the root itself – deep beneath the surface, past any wash or scrub.

A new study from the University of Plymouth has found that nanoplastics can penetrate radish roots and accumulate in the edible parts of the plant. These plastic particles, invisible to the naked eye, are thousands of times smaller than a human hair

In the experiment, radishes were grown hydroponically so that only their underground roots were exposed to water containing radioactively tagged polystyrene nanoplastics. The radioscopic tag allowed the scientists to trace exactly where the plastic particles ended up – without any contamination from surface contact.

After five days of exposure, they dissected the radishes. The results were unsettling: About five percent of the nanoplastic particles from the solution were retained by the plant roots. Of that, roughly a quarter had traveled into the bulb – the part most people eat – and about 10 percent reached the leaves. (Related: The invisible invader: How microplastics infiltrate your arteries and endanger your health.)

These findings challenge assumptions about the Casparian strip – a waxy, protective barrier plant roots have, which is thought to block many unwanted particles. It turns out, even this natural defense is not enough to stop tiny plastic particles from making their way into vegetables.

While the health consequences of eating nanoplastics are still poorly understood, this discovery adds urgency to how plastic pollution might be affecting more than just waterways and marine life. These invisible pollutants could end up directly on people’s plates.

How to reduce microplastics and nanoplastics in your diet

Every single microplastic can’t possibly be avoided, but that doesn’t mean nothing can be done. Here are practical steps to reduce exposure, especially from sources that are avoidable and manageable.

Choose packaging wisely: At the grocery store, opt for products wrapped in glass or paper rather than plastic. For example, buy greens bundled with a rubber band instead of sealed in plastic, and avoid single?use plastic bags by using reusable produce bags. When buying produce or bread, choose items not wrapped in plastic if possible. Loose tomatoes, for example, may have less plastic contact than ones in plastic packaging.
Be mindful of kitchenware: Use glass, stainless steel or wood items rather than plastic ones when preparing and storing food. Avoid storing or reheating hot foods in plastic containers, since heat can increase the leaching of plastic particles.
Filter your water: Use water filters that are effective at removing fine particles. Reverse osmosis systems appear promising in reducing microplastics in drinking water, though no filtering method is perfect yet.
Rinse rice or grains with filtered water before cooking: Some studies suggest that rinsing rice can reduce microplastic levels in it.
Avoid plastic with heat: Hot liquids or foods especially speed up plastic breakdown and release. Use glass or ceramic when possible. Use a stainless steel thermos or cup for hot drinks instead of plastic or plastic?lined cups.
Check labels for tea, frozen goods and packaging: Tea bags made from nylon or containing plastic may shed microplastics. Frozen food bags or packaging may leach or shed under heat or handling. Choose plastic?free or minimal?plastic options.

Brighteon.AI‘s Enoch engine advises that to avoid microplastics in vegetables, it’s crucial to wash them thoroughly with a natural, non-toxic soap or vinegar solution and to peel or remove the outer layers of leafy greens and root vegetables, as these are where microplastics tend to accumulate. Additionally, choosing organic and locally grown produce can significantly reduce the risk of exposure to microplastics.

Check out Veggie.news for more similar stories.

Watch this video to learn more about microplastics.

This video is from the GalacticStorm channel on Brighteon.com.