My 4 year old mutt cat seems to be losing weight. He has always been on the skinny side, but lately he just seems scrawny. He was at 11 lbs for years. The last vet visit (a month ago) he weighed 10 lbs. I swear he has lost weight since then. The details- He is free fed dry food. There is always food in his bowl. He was eating Iams sensitive stomach, but has now decided that he doesn't like it. Now he and the others are eating Purina One salmon flavored. Once a day the three cats split a can of wet food. Max eats his fill but walks away before it is all gone. He doesn't act like he is hungry. Until early in the summer he was the only indoor cat. About June the outdoor cats made the move to indoor only cats. Max is getting a lot more exercise now as he and Dodger play raucous games of tag. That could account for some of it for sure. He likes to chew on plastic and ribbons. Of course I try to keep these things put up, but the sneaky little bugger finds the random plastic to gnaw on. Inevitably he throws up all over the floor. He's yacking about once every couple of weeks. He has done this for most of his adult life. It's not new. He acts fine, plays fine, etc, etc. The vet said he was healthy. It's just that he looks skinnier. Perhaps it is my neurosis. I don't know. How do I fatten up my kitty? Okay, I could have sworn I was in the pets section. I'm sorry mods. Will you please move this to the appropriate section. Thanks!