[CatherineofAragon]

"Pickles is also overweight: he needs to be put on a “catkins”diet. He’d very quickly lose all of that weight if the carbs were cut out. Cats are obligate carnivores and are not designed to eat grain or any carbs at all for that matter."

Exactly right. The catkins diet also takes care of the hairball issue and feline tooth decay. I personally believe it's the answer to feline diabetes, which is on the rise.

[catnipman]

” I personally believe it’s the answer to feline diabetes, which is on the rise. “

It’s also the solution to pancreatitis, liver disease, and inflammatory bowel disease in cats. That is, if you feed your cats a diet like this, they won’t develop those diseases. Most cats won’t live past 11 years or so on a high-carb diet.