I figured I would jump on the bandwagon share my boys. Harvey, the orange one, is at his ideal weight according to our vet. Salem, the black one, could use to loose a pound or two. I'd call him overweight but not obese. He's the one that gets some table scraps. I think he steals more than we intentionally feed him. He's worse than a dog. You can't leave anything unattended, not even a drink. He has been known to go diving in the kitchen trash can on occasion too. He's a stinker! Both cats are active and playful. Probably the difference here, is that since Salem has become overweight I've started feeding him out of a slow feeder bowl, restricting his portion sizes and limiting his treats, instead of calling his imminent fatness cute and perpetuating the problem! His weight has only been an issue for the past year or so, and a metabolism slow-down is not unusual as a cat gets older. He was always a thin kitten, no matter what I fed him, but now we must watch his figure!
Though I agree with Jessabel that declawing is evil, it is sometimes a necessary evil. I do not own my own house. I moved back in with my parents for a short time and my dad gave me an ultimatum. I had to declaw my cats or get rid of them. I would rather have cats be declawed, spayed/neutered and well cared for in an indoor home, than have their claws in tact and end up outside or in a shelter. I would have preferred to leave their claws alone, but I was given no choice in my living situation at the time. Now that I rent, my landlords require all cats to be declawed. Once I have my own house, and my own rules, no cat of mine will ever be declawed.
While I do think declawing is cruel and largely unnecessary, I do not think it is a contributing factor to obesity. My own cats, despite being decalwed, seem to have no difficulty zipping around the house at impossible speeds, destroying anything fragile, knocking over furniture, getting into things they shouldn't, hiding toys in our shoes, flushing the toilet repeatedly and hunting spiders.
When I worked for the small animal vet, most house cats were front declawed and obesity did not seem to correlate with who was declawed and who wasn't. I did notice that obese people, and older people tended to have obese pets (especially dogs). Perhaps their own energy levels interfered with their ability to exercise their pets. Older cats and dogs were more likely to be obese, and only pets tended to be obese (those from households with no other pets). I think having other pets for your pet to interact with helps keep them active, and as they get older, younger pets encourage playtime with older pets.