The one thing I dislike about Ziwi is there use of lecithin. It is soy based lecithin. For some dogs soy can trigger an allergy.
After having an issue with my dog constantly regurgitating or vomiting many different types of food(kibble, raw, dehydrated,canned) we had him tested. What puzzled me was some foods he would immediately vomit while others he would be fine with for weeks before he would start to reject. We had this same issue with Ziwi. We later found out he has a moderate soy allergy. So ingredients he was moderately allergic to took awhile to build up in his system before he could no longer take it.
Have you thought about other types of raw or dehydrated foods? Ziwi is good but there are so many other types of commercial raw that could be a better fit.
