Microplastics and Your Health: What You Need To Know and Practical Tips

Where Microplastics Show Up in Our Diet

Food

Seafood is the poster child for microplastic exposure. Fish, mussels, and oysters can ingest plastic, which then travels up the food chain to us. One study found a single serving of mussels could contain up to 90 microplastic particles—yep, that tiny little garnish on your plate might be carrying plastic along with protein.

But seafood isn’t the only culprit. Microplastics have been detected in honey, table salt, and even sugar. Sea salt is particularly tricky since it’s consumed in large amounts and often contains microplastics.

Bottled Water

You might think that bottled water is pure and pristine. Research suggests otherwise—microplastics can leach from the bottle itself or the packaging process. Sometimes, bottled water even has more microplastics than tap water. Filtering your water or choosing glass or stainless steel bottles can make a difference.

Packaged Foods

Anything wrapped in plastic is fair game. Polypropylene (PP) and polyethylene (PE), two common plastics in packaging, can break down over time, especially when heated. Think tea bags steeped in hot water, plastic bottles left in the sun, or microwaving leftovers in plastic containers—they can all release microplastics into your food or drink.

Household Dust & Surfaces
This one’s sneaky. Microplastics can settle on tables, plates, and utensils, and we end up ingesting them with our meals. Some studies suggest we may eat more microplastics from household dust than from seafood—so yes, cleaning your surfaces matters!

Agricultural Products
Plastic is everywhere—even in farming. Plastic mulches and other materials can break down in the soil and be absorbed by crops. Microplastics have been found in carrots, lettuce, and even strawberries.

Why This Matters for Your Health

Microplastics aren’t just an environmental nuisance—they may have real impacts on the body.

Gut Health
Microplastics can accumulate in the gut, potentially triggering inflammation and altering gut microbiota. Since your gut is central to digestion, immunity, and overall well-being, this disruption could worsen conditions like IBS or IBD and might even increase risks for colorectal cancer.

Metabolism & Immune Function
Particles that reach the liver may interfere with lipid metabolism, potentially contributing to conditions like fatty liver or insulin resistance. Chronic inflammation from microplastic exposure could also strain your immune system, increasing the risk of autoimmune issues. Supporting gut health and following anti-inflammatory eating strategies can be a helpful tool here. Read more about nutrition and your immune system here.

Brain & Neuro Health
Emerging research suggests microplastics might cross the blood-brain barrier. While this is early science, it raises questions about possible effects on cognition, mood, and neurodegenerative diseases. Eating brain-supportive foods rich in omega-3s, antioxidants, and other neuroprotective nutrients may help.

Hormones & Reproductive Health
Some plastics contain chemicals like BPA and phthalates, which can disrupt hormones. These endocrine-disrupting chemicals may affect fertility, metabolism, and even cancer risk. For those navigating hormonal imbalances, nutrition can support detoxification pathways and help reduce the body’s chemical load.

Practical Ways to Reduce Exposure

While it’s impossible to eliminate microplastics entirely, you can take steps to cut down exposure:

• Choose natural, plastic-free packaging. Fresh produce, glass containers, and eco-friendly packaging options help reduce the microplastic load. I made the switch from plastic food storage containers to glass and won’t go back!
• Filter your drinking water. Tap water in many cities is a safe, eco-friendly (and economical) choice. High-performance filters can remove small particles, including microplastics.
• Be mindful with seafood. Smaller, younger fish usually have less microplastic buildup than larger, older fish. Look for sustainable, cleaner sources.
• Reduce plastic in daily life. Swap single-use plastics for glass, metal, or bamboo. Personally, I switched all my plastic food containers to glass and use a metal water bottle for everyday hydration.
• Advocate for better waste management. Picking up litter, recycling properly, and supporting policies that reduce plastic production can make a difference.
• Opt for microplastic-free personal care products. Shampoos, body washes, and cosmetics can contain tiny plastic beads. Natural, plastic-free products like EC30 (my personal favorite) are an easy switch.
• Be strategic with water bottles. BPA-free plastic bottles can still shed microplastics over time. Stainless steel or glass bottles are safer for daily use. For me, I still use my BPA-free hard plastic bottle during intense training, but stick to metal bottles otherwise.

Bottom Line

Microplastics are everywhere, and our bodies aren’t immune. They can impact gut health, metabolism, immunity, neuro function, and hormones. While we can’t avoid them completely, smart choices around food, water, and daily habits can reduce exposure. Making small choices to remove as much plastic from your daily living as possible can add up to big impacts on your health. Plus, who doesn’t want a new (non-plastic) emotional support water bottle?