Foodstuff? I’m going to go with Yes. *audience members start pulling their dictionaries from their backpacks, briefcases, handbags and messenger bags, and the muttering begins immediately*
Smok(e)y bacon crisps? No.
Exist in 1800? Yes.

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.