Not trolling just for curiosity.
In many food (like flour, tomato sauce, etc) there are insects fragments, water may have microcrustaceans.
This way it seems to be impossible to a human survive without eating animals (they are everywhere).
I know that a person more open minded wouldn't care about it but vegans are supposed to not use or consume animal products of any kind, how they deal with it?
Sorry if I offended anyone it was not my intention.