alt Hacker NewsOff the top of my head, wouldn't it be super easy to expose lab rats to microplastics and measure results?
No way this isn't heavily studies by now.
Edit: found a whole meta-study in like 30 seconds of searching: https://www.frontiersin.org/journals/public-health/articles/...
There's a lot more to the linked study than this, but since I know a lot of people won't bother to click the link:
> Micro/nano-plastics negatively affected the blood glucose metabolism, lipid metabolism, and reproductive function in mice.