Whenever Rika finds a new fruit/veggie/mushroom/ect on her travels, her first reaction is to eat it.

Luckily, her body is really good at processing poisons, so no matter how toxic something is, it won't kill.

Though that doesn't mean she won't have a really bad stomach ache from eating it, or go blind for a bit, or break out in hives, or have all of her fur fall out....