Has your dog exhibited any of the following symptoms? - Itch - hair loss - Skin problems - Ear problems - Vomit - Diarrhea - Excessive flatulence Then this could mean that your dog has food allergies. Do you think this is indeed the case? Then consult the vet. Boxby Functional Sensitive Protein supports the skin and coat. In general, Retrievers, Spaniels, Sheepdogs, Shar-peis, Poodles and Labradoodles are more prone to this than other breeds.