Microplastics Are in Your Blood, Lungs, and Liver

Scientists have now confirmed what we feared: microplastics and nanoplastics are inside us. In our blood. In our lungs. In our livers. In our placentas.

Five Years of Evidence, One Clear Picture

A 2026 systematic review in Sci Total Environ pulled together five years of research (2020 to 2025) on micro and nanoplastics found in human biological samples. The review covered studies that detected plastic particles in blood, lung tissue, liver tissue, placenta, breast milk, and stool.

These aren't theoretical exposures. Researchers are finding actual plastic fragments inside human organs using advanced detection methods. The particles come from food packaging, synthetic clothing, water bottles, dust, and cosmetics.

How Microplastics Get Inside You

You breathe them in. You eat them. You drink them. Plastic breaks down into tiny particles that are small enough to cross biological barriers and accumulate in tissue. Nanoplastics are even smaller and can pass through cell membranes.

The review found that detection methods have improved dramatically in the last five years, meaning we're only now seeing the full scope of the problem. Earlier studies likely underestimated how much plastic is actually inside us.

What You Can Do

Cut plastic out of your daily routine where you can. Use glass or stainless steel for food and drinks. Avoid microwaving in plastic. Choose natural fiber clothing over synthetic. Dust and vacuum regularly, since household dust is a major source. Browse non-toxic home essentials for plastic-free swaps.

Also see non-toxic kitchen essentials for safer alternatives.

Source: Christodoulou et al. (2026). Sci Total Environ.