Willow input on foods for FD with CKD"

Hi guys

I need some help with what would be the best food for Willow. Can anyone give me input on foods for FD with CKD"
Apparently she is stage 2 CKD, we switched her from fancy feast fish to BFF and added cooked egg whites to her food. We need to know if there is something better to give her.
Here is her latest blood work.
https://drive.google.com/open?id=0B1ePLgA75BPeeHdpRjJKby1mNlk

Thank you in advance