Trainers are advised against trying to eat Goodra slime as, in rare cases, the slime can bond with other organic material and slowly change it into another Goodra.
"That pasture sure does seem nice, it's missing something though. Oh that's it! It needs is a cow. A cow to frolic idly in the pasture. Hmm, I don't actually see any cows around here. I'll just need to make my own. Hey you there I have an important job for you..."