Mineral = water? No, though water is involved.

Actually, forget I said that about water being involved. It’s at best misleading, and it’s not helpful.

Vegetable = fruit? Yes.
Not eaten by humans? Were I to be annoyingly and misleadingly literal, I’d say Yes. The AOTC is not normally eaten by humans. But the reasonable answer is: No, because the vegetable (and animal) component is consumed by humans.

Dog biscuits? No.