"Your dog is fat," the vet would say, even before he weighed her.
My dog is now on the heavy side of normal rather than an overstuffed taco of a chihuahua. I feed her lean dog food, give her lean dog treats, and her only people food is a bit of skinless breast meat or the occasional cashew or empty nut butter jar to lick. Sadly, I think she reflects upon the years my mother was alive with great fondness as 'the good years' of her food history.
I realize that not all dog appetites are created alike, however. My first dog was a chihuahua-corgi cross, and very fussy. She was a stray, so its possible that she developed a reluctance of eating anything strong-smelling or tasting as a survival mechanism, unlike my current pooch. Either that, or it was the British corgi blood that was 'not amused' by commercial dog food.
I've concluded that dog foodie types fall into several categories:
You haven't had to wash your kitchen floor since 2003, when you got the dog. Crumbs, flour dusting, drippings, even carrot tops get sucked down. Teaching your baby to eat people food required no cleanup. Your children have not ingested vegetables since 2005, when they discovered that they could surreptitiously feed them to the dog beneath the table. The upside is that you can feed him any kind of food and he will eat it gladly. The downside is that you should really start a savings account to pay for the intestinal surgery he will surely need at some point.
The Food Critic
You started her with regular dog food, or the brand your vet recommended. She didn't like that, so you tried another one. She ate it for a few weeks, then refused it. You tried waiting out her food strike, but then she got sick and your vet suggested chicken and rice, to encourage her appetite. Six months later you were still feeding her chicken. Then she decided she only liked white meat and you weren't cutting it up in small enough pieces. Totally frustrated, you tried to put her back on the first brand of dog food you ever bought. She ate it for six months happily, refused to eat, suddenly one day...and the cycle continues...
Self-explanatory. Never seems to feel sick after puking. Always manages to do it on a rug or a couch, rather than something easy to clean like the kitchen floor. And just when you're in a rush, leaving for work....
This dog is not particularly interested in either human or dog food. However, shredded paper towels, socks, underwear, poisonous berries, toilet water, the wrappers of candy bars (but not the candy bars themselves) call to him like a siren song.
This dog is irresistibly lured to eating chocolate, coffee, macadamia nuts, alcohol, and all other substances on the 'do not feed your dog these foods' list. No joke here--I have heard of dogs dying from eating chocolate, but one of my neighbor's dogs managed to eat an entire bag of Nestle's semisweet chocolate chips when she turned her back on him during a round of Christmas baking. The dog, miraculously, was fine, but the grass never quite looked the same.