I had 4 vets look at my dogs rash (covering half his body) with $2500 in testing. They came up with nothing. I was told by 2 of those vets this will only get worse and They diagnosed it as a hot spot that couldn't be treated with all the prescription drugs they gave him. So I contacted a nutritionist who told me to try By Nature's Organics. My dog no longer has a rash and is active and healthy again. This food saved my dogs life, I may have had to put my dog down if it continued. I am now a beleiver in nutrition!!!