Sadie is a 2 year old adult dog. All info points to high protein problems with puppies but I'm not finding anything concrete on adult bulldogs. The vet on call did specifically ask that she was an adult dog.
I am looking forward to the results you have froggz, let us know how it does.
We had used totw some time back and my boys were loving it but Cutty's allergies forced us to switch. If I remember correctly the fish one was giving him acid reflux we think cuz he would just spit up food randomly out of the blue, very odd. Hope it works for you, it does seem to be a great food. (for adults I guess anyhow)