We had to take Riley to the vet because she has been having an itchy bum for a few weeks and started scooting a bit over the last few days. Before the scooting started she would abruptly sit down and then look at her bum every once in a while, sometimes a few times in a row. It was weird but she wasn't scooting so we thought maybe she just had a minor itch or something. She's also been licking her paws a lot lately but that's nothing new for her - it comes and goes.
The vet says her anal glands were a bit full and that combined with the paw licking they think it's a food allergy. To me it doesn't sound at all like a food allergy... she doesn't vomit up her food, her stools are normal (if a little bit soft, but they are formed), she isn't losing weight or anything (in fact she's a few pounds over). The itchy bum did start shortly after we started her current bag of food and her poops have not been very hard so I'm guessing that's probably the reason for the full anal glands.
Just to be cautious we're going to switch her off her current food (Fromm Surf and Turf) to a 5 lb bag we have of Pork&Peas formula to see if there's an immediate change in her stools. The two formulas have different proteins so it's worth a try. We had noticed in the past that she doesn't do super well with heavily fish-based foods so maybe we just need to stay away from those.
My husband is convinced that the vet is on the right track because they are a vet and we are not... but it just doesn't seem right to me. I looked up food allergies in dogs and the only symptom Riley seems to have is the paw itching which is more likely to be due to environmental allergies.