I am sorry, but the information about cat food here is absolutely incorrect. Dry food, and the high carbohydrate content associated with it, is producing increasing numbers of diabetic cats daily. As well as contributing to cats with pancreatitis, inflammatory bowel disease, kidney and bladder problems etc. Cats are obligate carnivores with a low thirst drive. They do not eat corn in the wild, yet that is the main ingredient in most dry foods. Cats need meat--protein--and lots of it, and wet food has a high water content and higher protein and significantly lower carbs than dry. When you have an animal with a low thirst drive and feed it dry food...well, you are setting it up for kidney issues later.
Of course, there are tons of cats who do well on dry food all their life, just like Willard Scott is always dragging out 102 year old people who live on bacon and rotgut whiskey exclusively. But cats are obsese now more than ever--and these high carb dry diets are greatly to blame.
But you do not have to take my word for it! I would not expect you to. Here is a website written by a veterinarian that explains, in detail, why dry food is not an ideal diet for a cat:
http://www.catinfo.org/
OP, thank you so much for taking this sweet kitty in. This says a lot about you and your family & your kind hearts!!