When we went to the vet this morning, Ronnie weighed 9 pounds, up from her usual steady 8 pounds. She is 5 years old. She is small-framed, so I had definitely noticed the weight gain over the past year, though she is far from fat.
She eats half a packet of Whiskas wet food a day, and has regular dry Iams available at all times. She is an indoor cat but very active. She is healthy except for some premature tartar buildup, which the last vet had me feeding her tartar control treats for.
The vet recommended I feed her a high protein diet to prevent further weight gain. He claims high protein (50%+), very low-carb (10%-) wet diets are better for cats, because they mimic cats' historic diets. He also said the old story about dry food being better for cats' teeth is wrong; dry carbs can actually make tooth decay worse. And he said high protein has not been proven to cause kidney problems, which used to be a concern.
He gave me some reading material, which I've gone through critically. I've also done some general internet research and read a bunch of abstracts on PubMed. And I still can't tell whether the high-protein argument has general support in the veterinary community.
I am willing to spend more on cat food, but not insane amounts
, and I have neither time nor inclination to prepare Ronnie's food myself using whole rabbits, organ meats, and a variety of supplements