I seriously doubt that any food you purchase in a store would be appropriate for Dany. The specialists suggested either RC low fat or home cooking for my Cookie. I opted for home cooking. They have a nutritionist on staff there...she also has a website if you are interested:
Lenox Veterinary Nutrition Consulting | Clinical solutions for feeding and nutrition in small animals
Here is a link to a thread about Cookie ...
http://www.yorkietalk.com/forums/sic...ia-update.html
It is very true that diet is important for these pups....I believe it is money well spent to consult with a vet nutritionist. Some people think that any nutritionist is ok, but personally I won't use any that are not vets. I have used mine for other pups and she is spot on in keeping them healthy. If you want to find one in your area, you can search on
American College of Veterinary Nutrition But, you can do consults without them seeing your pup...they would speak with your vet and get records.
Good advice too from 107barney ... an internal med specialist is invaluable when dealing with illnesses like this.
Good luck and please keep us posted. If I can help in any way, feel free to message me.