My siamese has always had very stinky poo, a lot worse than other cats I've had (you don't want to go in the bathroom after she's been in there!) Anyways, for the last month I have noticed that the smell is not nearly as bad...actually i haven't even noticed the smell. I thought I was just used to it. Last week I ran out of dry food and bought her a new brand...just as soon as i did that the stink was back. So for any of you dealing with especially fragrant feces... Purina One chicken and rice is one to try.