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Hi All! I've lately fallen down the rabbit hole of food trial researching as well as joined the facebook group about Nutritional Dilated Cardiomyopathy in dogs (which I highly recommend everyone join) and found this interesting article I think a lot of GT'ers should take a look at: https://onlinelibrary.wiley.com/doi/epdf/10.1002/vms3.125 This was a study done last year at UC-Davis to DNA test commercially available limited ingredient/single protein dog foods to see if they actually only included the protein specified on their label and ingredients list. Almost every formula showed DNA from mammals that were not listed on the label, and one actually did not include the main protein advertised! While they don't get super specific in pointing out which brand is guilty of which contamination, none of the brands surveyed come out looking great, and they all are brands that I've seen GT'ers discuss and probably use. This contamination could be intentional or simply because machines are used for multiple formulas and contamination happens, but either way I think for anyone intentionally trying to feed a novel or single protein diet because of allergies/sensitivities it's important to know that your kibble might not really be free of other protein contamination. And that you might be paying more for a label that isn't really true.