I would say try digging up some of the old raw threads, maybe join a raw yahoo group, dig around on the net, and call your vet (or others). Collect all your information together and present it to her.

Nutro IS at all of my local Wal Marts. I have seen it there every time I have gone to Wal Mart for the past few months as that is the very first place I go. They have the dry kibble and wet food.