My husband/I began our dog (year and about 8 months) on Purina One Adult, but only because that was what he was being fed at the shelter, but we decided to switch because of what we thought was a skin reaction–switched to Eukanuba. It was recommended to us by our dog trainer–Maintenance formula–he’s done well on that. Healthy stools, not as much itching, although I’d love to be able to afford Natural Balance for him. He LOVES their tubes of food–fish/sweet potato, lamb, and turkey–awesome ingredients, no fillers/by products–all natural, wholesome goodness. Might end up switching over to Nat. Balance if Eukanuba doesn’t sit well with him at some point–but we don’t want to switch foods too often.