Google amphibian pancreatic chitinase
Try and find legit scholarship papers...
What your perception is and what reality is might bebtwo different things.
Also if I may add, just so we're talking about the same thing here, impaction causes death if untreated.
A frog pooping undigested chitin isn't impaction.
I've only ever seen impaction cause by sand and rocks really... huge mass of fine coco fiber once in a pacman frog but I suspect low temp didn't help that.