Don't many things make their way from the gut to other organs? What does that mean? I'm all for reducing plastics, but what happens when we scaremonger and then end up with nothing is that people stop listening to warnings, even when they are true. Let's focus on real harm plastics cause that we are aware of and good solutions to disposable plastics until we have studies that definitively show harm from microplastics in humans.
You're asking for studies that show the effects of microplastics in humans. How do you think that gets established? Not all at once. This isn't scaremongering, it is how science happens, part of the pathway to establishing what those effects are. Knowing where microplastics can migrate through mammalian tissues is clearly relevant to your own stated end goal.
