I have been feeding my 8 year old Golden Retriever Canidae for a number of years. As many of you know, they have changed formula recently and it has not agreed with my dog at all. After a recent vet visit to help her through her problems, I decided to put her on California Natural to give her system a rest. This is working out fine and she is once again a happy dog. After a while I would like to try her on one of the no-grain foods. My research has led me to the Merrick Before Grain foods. I like the lower protein of 32% vs the 42% of most of the other foods without grains. Have any of you folks had any experience with the Merrick Before Grain foods and/or with this firm's other foods. I would appreciate any help you could give me. Thanks.