Nanoplastics Are Damaging Eggs at the Cellular Level

Nanoplastics are getting inside ovarian cells and rewriting how they function. The damage starts at the level of the cell's skeleton and its DNA programming.

How Nanoplastics Attack the Ovaries

A 2026 study in J Hazard Mater found that polystyrene nanoplastics disrupt ovarian development through two mechanisms: cytoskeletal remodeling (changing the physical structure of cells) and epigenetic reprogramming (changing how genes are turned on and off). The damage was especially concentrated in granulosa cells, which are the support cells that nourish developing eggs.

Without healthy granulosa cells, eggs can't mature properly. This means nanoplastic exposure could directly affect egg quality and fertility.

Where Nanoplastics Come From

Nanoplastics are ultra-tiny plastic particles that form when larger plastics break down. They're in drinking water, food packaging, seafood, table salt, and household dust. Because they're so small, they can cross biological barriers that bigger particles can't, including getting into reproductive tissue.

What You Can Do

Reduce plastic in your daily life, especially around food and drink. Use glass or stainless steel containers. Filter your water. Avoid microwaving in plastic. If you're trying to conceive, these changes are even more urgent. Browse non-toxic home essentials to start cutting plastic exposure.

Also see non-toxic kitchen essentials for safer alternatives.

Source: Liu et al. (2026). J Hazard Mater.