Studies suggest a person may ingest 40,000 to 10 million plastic particles a year – causing glucose intolerance, injury to organs like liver

“Waiter, there are fragments of synthetic polymers in my soup” does not have quite the ring to it as the old joke about the unappetising fly.

Research presented at an American Society for Nutrition conference in Orlando, Florida, that ended this week suggests that food and drink are much more likely to harbour harmful plastics than toxic bugs.

“With the growing concern around micro- and nanoplastic exposure, we wanted to evaluate the impact of this exposure on health,” said Amy Parkhurst of the University of California Davis.