My rabbits like the taste of these. I'm not sure if they actually control odor as I haven't noticed a difference in their litter tray but at least they like them as treats. I wouldn't give them too many at a time as I don't think they are that healthy with the flavourings.
These treats are loved by all five of my rabbits. My indoor rabbits particularly like them which is useful because I don't want my house smelling! When I had a poorly rabbit in stasis these were the first things he ate before deciding to eat other food - which was a big relief.
Brilliant treats, they cut the smell down so much our rats love these. We call them vitamins and my rats come running everynight they don't let me forget either. I have been using these for 4 1/2 years I wouldn't be without them now plus VetUK are the best price for them. Thoroughly recommended.