You are correct, your dog is not able to digest the new food properly at this time. The previous food, NB Chicken & Sweet Potatoes, and Orijen do not contain probiotics. If your dog has been eating that for awhile, it is going to take longer than a couple of weeks for the gut to adjust to the Earthborn even though it does contain probiotics. The dog was being fed a lot lower protein and fat diet even with “a little Orijen added”. Earthborn Primitive Naturals is too big of a jump in a short period of time. Considering the high protein and fat in Earthborn compared to the previous diet it could also bring on a pancreatic attack. If you want to continue with the Earthborn back it down to only 25% and give it a week and see what the poo looks like. When it is ok, do a small increase and then wait a few days or week before making another small increase.
If your dog was doing ok on NB, then there is not a problem with peas and potatoes since it contains sweet potatoes, potatoes, peas and chickpeas. I personally would recommend making a smaller jump to a food with no more than 28-30% protein, and sticking with it for several months before considering such a high protein food.
