I doubt any company or professional person would recommend pet food as safe, even if they believed it was. Imagine the liability issues, loss of license, or being publicly pilloried by the media on a slow news day.

You could frame it this way: "Doc, I accidentally ate a few handfuls of puppy chow, thought it was trail mix, here's the label, is this dangerous to my health?"

I'd be cautious about the pet food thing. My dogs and cats find and eat all sorts of stuff that would make me extremely ill. Clearly their digestive systems are a lot tougher than mine, and they're able to deal with pathogens that would knock me flat.

However, if I was genuinely starving, I would eat pet food.