@barky.bakey: How do you diagnose food allergies in dogs? First of all, theyre not common. About 10% of dog allergies are food allergies. Second, it has to be by a strict dietary exclusion trial for 6-8 weeks with your vet. There may be blood tests for food allergies out there, but pay them no mind! #dogfoodallergies #dogfoodadvice #vetadvice #dogallergies #dogatopy #allergiesindogs