We have fed our B's
Science Diet Sensitive Skin
We have so far found that EVO is the best food out there. As soon as the Bs adjusted to it we got better behavior, better energy, and better weights. My male was always too skiny he is now muscular and a good weight. Our female was always too hefty, she is now skinier and more active.
Hope ths helps. The transition will be hard….I did half a hand full at first for a pup that ate 3 cups a day. Go slow. Use Pepto Bismol if you have to (the pills not the liquid you will have a pink dog if you do)
One of the reasons that I rotate the food is that then you really do not have to change slowly or at least that is what I find. I change every three months to a different food going between Wellness, California Natural, EVO, Fromms, etc… you get the picture. That way they are used to constant change (also adding in veggies and fruits both raw and steamed along with yams, etc).
If I am on the road and need food for the B's then I never have to worry that I will not be able to find what I am feeding them at present... as they are used to change...