I had my guy, Ziggy, checked out by his vet for chronic diarrhea problems, and when his urine was tested, we discovered that there were crystals in his urine (precursors to bladder or kidney stones). She recommended feeding him Royal Canin Veterinary Diet Canine Urinary SO Dry Dog Food, and he's been on it for about a week. The diarrhea problem is completely gone (yay!) - and I'm also finding that he's drinking a lot of water and peeing a lot.
Anyone else feeding their B Royal Canin Veterinary Diet Canine Urinary SO? If so, have you noticed a change in the output of urine?