I have two cats, one, Izzy, is nice and well filled out but not too plump; the other, Pinky, is, I think, too thin. They eat the same food but I would like to put just a few pounds on Pinky. I can feel his ribs and I don't think that's right. But, I don't know what I can feed him to "fatten" him up a bit. I don't want to give him cream or anything like that. Does anyone know if there is some kind of supplement that I could give him. He has a very good appetite, that's not a problem, but just can't seem to put on any weight. Vet says there is nothing physically wrong with him and he is totally healthy.
Thanks everyone and anyone for your help.
Thanks everyone and anyone for your help.