Thank you for telling me that. You made me feel so much better. I have been searching foods all day long.
I actually did take him off of Proplan to try the PurinaOne challenge and my vet said to put him back on ProPlan.
The only time he gets itchy skin is in April. The groomer and I have been watching this. So I think he does have seasonal allergies, but nothing to do with the food.