I had Maddy on it for a while. It worked well for a while. Until Spencer started trying to steal it from her. lol. But she liked that garlic taste and ate it down greatly.
We put her onto another brand now though because it caused runny poo's for her. This problem didn't go away so someone suggested to switch brands for a while to see if it works. And it did.
I'd say go for it. (If you like that garlic smell...mmmm....lol.)