My cat Dot has always been somewhat of a picky eater, she likes fish and chicken but won't touch beef. Over the years (15) she's lost some teeth, so a few years ago we had to give up the dry food. That's okay, said the vet, she can live just fine on canned food.
I've bought her a variety of the cheap store-brand stuff, mixing up flavors every day. But she got to the point where nothing floated her boat, she'd often leave her bowl untouched.
So I switched to name brand stuff, Friskies, which is more expensive. At first the devoured this enthusiastically, then lost her taste for it after a year or so. For the past year I've been alternating the Friskies with the no-name stuff, and she eats it - but without much relish.
During this time she has gotten skinny. She's always been slim, but she was getting scary skinny. Took her into the vet, and she said it's just her natural metabolism.
But I didn't like how frail she seemed.
So I said, hell, we can afford it now, and bought her some Sheba and Fancy Feast. You know, the 99 cents a can stuff.
Her interest in food was reinvigorated. And over the past month she's put on weight, to the point where she feels pretty normal again now.
Who knew? Name brand cat food can starve your cat.