After having a long long long conversation with the girl at my pet food store, I decided to call the number on the Kirkland dog food bag and also Diamond dog food. I understand that Diamond makes their own brand, Kirkland and Canidae. The pet store owner said the chicken that's used for Canidae is a better quality than used in the other brands made at that facility and not to buy the other brands; they are terrible. She was trying to convince me to buy Canidae even though she's the one who tried to convince me not to buy it after the ingredient change. I do understand she doesn't want to lose my business. After speaking with representatives at both phone numbers, this is what I was told: All of the chicken delivered to Diamond comes in one batch. They do not have different chicken for each of the brands they produce. It's all high quality and everything they produce is tested. Diamond said the girl who owns the pet store is wrong is what she told me. Diamond also told me that the Kirkland brand is made specifically for them and is cheaper than buying Diamond, etc. at pet stores because the distributors getting profits, etc. are eliminated. The food goes directed to Kirkland.