These Are The Foods To Eat (& Avoid) To Reduce Microplastic Exposure

Microplastics are everywhere. They're in our water, our food, even our arteries and brains. It's unsettling to say the least.

But how does the food we eat increase (or decrease) plastic exposure? Researchers recently reviewed the data to examine this very question. Here's what you need to know.

About the study

The narrative review1 set out to synthesize existing research on microplastics and gut health, with a focus on how dietary factors might influence both exposure levels and potential harm.

Researchers examined studies on microplastic sources in food and beverages, how these particles interact with the gastrointestinal tract, and whether certain nutrients or dietary patterns could mitigate their effects. Most of the current evidence comes from animal and cell studies, so the researchers were careful to note where human data is still lacking.

Smaller particles, bigger concerns for gut inflammation

Not all microplastics behave the same way in the body. According to the review, particle size matters. For example, smaller micro- and nanoplastics appear more likely to cross the gut barrier and enter tissues, where they may trigger inflammation and oxidative stress.

The review also found that ultraprocessed foods and bottled beverages were associated with higher microplastic exposure compared to minimally processed foods and tap water. Plastic packaging, processing equipment, and storage containers all contribute to contamination levels.

How fiber, antioxidants, and probiotics may help

The review suggests that certain nutrients may help counteract some of the potential effects of microplastic exposure:

So, the same foods that support gut health in general (fruits, vegetables, whole grains, fermented foods) may also offer some protection from microplastics.

Simple swaps to reduce your exposure

While we can't eliminate microplastic exposure entirely, the review points to practical ways to minimize it:

The takeaway

This review suggests that diet quality may matter in reducing how much plastic you're exposed to and supporting your gut's ability to handle what does get through. Prioritizing whole foods, fiber, and fermented options is a reasonable step forward while the science catches up.