Boo,will be four this Sept.I think he may have Persian in him ,because he has long hair.Lateley I have noticed that he has become very thin.I have changed his food from dry to canned because I thought that it could have been an oral problem,he does have a tooth broken.He likes the change ,but still is not gaining the weight I think he should.I just changed his diet a couple of days ago,maybe he needs more time,or could this be because of his age or breed.He is an indoor animal.He plays with the other cat(female age one)and is very affectionate.He has never been this thin befor.I can feel his back bone very well.
Your pet should be seen by a vet for weight loss. You do not want this to go too far. Go to the vet soon. Weight loss in an important clinical sign to many different diseases. vetcare