Oh Joanne
! How scary. I don't know a lot about EPI - I do know Crystal was looking into it for awhile when she suspected a few things w/ Ellie (but not the case) - so she may know more. I do have a link, which you probably already have:
EPI in Dogs
What do they think is the best diet for her? So, just low carb? You could cook for her and/or give her higher protein kibble. As for weight gain, can you give fats? If yes, then peanut butter, some cheese, good healthy treats. Shoot, just saw you said "low fat" so PB may be out.
I would suggest raw, as it can be a miracle for some dogs - but I don't think it is best until she is in better shape; I'd be worried about her immune system a little.
You'll get her through this, you will!
