I went on a search for dog food 3 yrs ago and again 5 months ago when Lexie came home.... I looked into what each ingredient is exactly.
There are many that have corn, by products, many times a dogs allergies are due to the food he is fed, even with a good food like natures varierty my dogs had reverse sneezing, when I changed them to Innova, they were ok. After a while on it, Zander was tired of it, so we have done ... California naturals
, wellness, and back to California naturals. Lexie was fed chicken soup for the puppy soul, I am in the process of switching her to California natural
... good luck.