My choco lab used to eat Orijen 6 fish but for money reason I shifted it to Acana Pacifica (grain free). My confidence to this new food is equally the same as I was feeding her 6 fish because they are both come from the same manufacturer. Though Acana Pacifica is a little lower in protein content but for me this is also one of the best dog foods in the market.
I am using this food for two weeks now and there's a noticeable effect I have observed. My lab has much lesser hair fall compared to the previous food I had given her. Of course different effect vary from one dog to another so I can't say that this true to some dogs. But I am happier now.
Afterall, these two dog foods are worth the money.