Why don't you try a tablespoon of margarine a day added to her food. You should see a difference in about 2 to 3 weeks. You could even use Canola oil. Also you might check her teeth. I have bought two dogs from different people over the years who were feeding IAMs and their teeth looked lik they were on a chocolate diet. Maybe it was just a coincidence but for the price you pay for it the teeth should stay in better condition. Also was probably just another coincidence but both these dogs had bad dander and were outside dogs.