[SoCal Pubbie]

Well, I had a cat that weighed 16 pounds, though his weight fluctuated between 13 and 16. He was not a small cat, so was just big, not really fat. I'm sure like people there are animals that are very thin, and others that are much huskier. It still does not explain these 30- 40 pound tubbies, unless than have the same type of glandular problems that some very obese humans suffer with.

[Miss Marple]

Well, obviously the Atkins diet doesn't work for cats. :-)