Hi tonwol –
If it were me, I’d just start trying high quality, grain-free, fish-based foods and see what works. There’s no way to know what will work and won’t work unless you try. With that said, I really do think Sandy’s suggestion to make homemade food would be your best bet (you could use a pre-mix or vitamin/mineral supplement designed to balance homemade diets if you aren’t comfortable making food from scratch). All the brands you’re looking at are good brands and would be worth a try, however if your dog is prone to pancreatitis you may find she can’t tolerate the fat levels in some of these foods (the RC is only 10% fat). The Honest Kitchen’s Zeal might be worth checking out – it’s a grain-free dehydrated food with haddock, whiting and salmon and it’s only 8.5% fat.
