Can microplastics and nanoplastics in liquid foods raise health concerns?

What microplastics and nanoplastics are

Microplastics are plastic pieces from 1 micrometer to 5 millimeters. Nanoplastics are even smaller.

Liquid foods and drinks can sit against plastic packaging for a long time. That can make food-contact materials a source of tiny plastic particles.

What the research says

A 2026 review in Food Research International identified liquid foods as an important but underrecognized exposure route for microplastics and nanoplastics.

The review reported that food-contact materials are a primary source. It also found that toxicology studies show ingested microplastics and nanoplastics can impair the intestinal barrier and trigger inflammatory responses. The review also says measurement is still hard, especially for nanoplastics.

What to do at home

Do not panic over one bottled drink. Start with easy swaps. Do not leave plastic bottles in hot cars or direct sun. Use glass drinkware at home. Choose glass or stainless steel for storage when it works for your routine.