Yeah, I know. The dose makes the poison. Water is toxic if you drink enough of it. The point is: without evidence that "the poison" is actually toxic, and cert

Yeah, I know. The dose makes the poison. Water is toxic if you drink enough of it. The point is: without evidence that "the poison" is actually toxic, and certainly without evidence that it's more toxic than anything else you're regularly doing, then you're effectively just fretting. In the case of microplastics, we basically have neither. We have some weak lines of evidence of minor harm in other animals, and lots and lots of theories about what might happen. Note that I didn't say "don't worry about it". I just said "don't be terrified".