If your Golden Retriever has allergies, it is best to feed them a limited ingredient dog food. Avoid any grains like wheat, soy, and corn, and also steer clear of any artificial flavors, colors, or additives. Some dogs are allergic to beef, so you may have to look for alternative protein sources. Others have sensitivity to eggs. If the allergies don’t clear up, you need some further advice from your vet. They will be better placed to help you put your finger on what is causing the issue.