This is my cat Bliss. All 20 pounds of her. Now let me explain why she's carrying so much weight before you comment! She's allergic to most cat foods on the planet. If there's a bit of grain in it she itches until she's bloody. It's a sad way to live. Foods without grains give her bloody diarrhea because she has colitis. Cleaning a fluffy butt a few times a day is an awful chore, and worse if I'm not here to do it and she goes on the bed. You get my drift.
If she eats the diet food that makes her itchy, she has to get depo medrol shots which is a long-acting cortisone with many bad side effects ( ravenous appetite, excessive thirst and worse, diabetes.)
I recently read this wonderful article on feeding cats written by a veterinarian. So now I'm slowly trying the changes she recommends which has shot Bliss's weight up to 20 pounds even though I measure her food! So, what I've chosen to do is pick my battles. The bottom line is I want the most comfort for my cat with the least harmful side-effects. Even though it now takes a crane to lift her, we never make her feel bad about her weight :) HAW!!!!