Are microplastics and cadmium from food packaging a double threat to your liver?

What's actually in it

You encounter both microplastics and cadmium through everyday food. Microplastics come from food packaging, water bottles, and processing. Cadmium is a heavy metal found in chocolate, rice, leafy greens, and shellfish. It also shows up in some colored food packaging and as a contaminant in cheap kitchenware.

In the real world, these two pollutants hit your body at the same time. Your liver has to process both.

What the research says

A 2026 study in J Hazard Mater tested what happens when polystyrene microplastics and cadmium reach the liver together. The combination caused more liver damage than either pollutant alone.

The researchers traced the damage to the PI3K/AKT/mTOR pathway, a signaling chain that controls cell growth, survival, and repair. Microplastics and cadmium together shut this pathway down more completely than either could manage solo. Without it, liver cells lost their ability to repair themselves and started dying.

The combined exposure also increased oxidative stress and inflammation in liver tissue. Damaged liver cells released alarm signals that attracted more immune cells, creating a cycle of worsening injury.

You can lower both exposures at once by storing food in glass instead of plastic and choosing rice varieties with lower cadmium levels (like basmati or sushi rice). Filtering drinking water also helps with cadmium in some regions.