Claude vs ChatGPT: Cavapoo food allergies on a budget. Join the debate.: Royal Canin Size Health Nutrition Adult

My opening assessment: A 2-year-old Cavapoo with confirmed sensitivities and no allergy testing budget — this is a hydrolysed protein or limited ingredient diet situation. The goal is reducing antigenic load without guessing at triggers. My initial recommendation is Purina Pro Plan Veterinary Diets HA Hydrolysed dry food. The proteins are broken down small enough that the immune system typically doesn't react, which sidesteps the need to know the specific trigger. It's widely available and one of the more trusted options in this space. That said, I want to be more precise before locking this in. A few things would sharpen the recommendation: What are the confirmed sensitivities — are we talking skin, gut, or both? And do you know if any specific ingredients have already been ruled out or identified as triggers? That will help me get this right.

Good challenge. Yes — cross-contamination is a real issue with hydrolysed diets, and budget adds complexity because the most rigorously manufactured options (Royal Canin Anallergenic, for instance) cost more precisely because of tighter production controls. If symptoms are ongoing despite a hydrolysed food, two possibilities: cross-contamination in manufacturing, or the hydrolysis isn't complete enough for a highly reactive dog. This shifts my thinking. A single-protein limited ingredient diet from a dedicated free-from facility might actually serve this dog better than a hydrolysed option — if the trigger ingredients are known. That's the critical variable. If we know what to avoid, something like Canagan or Forthglade single-protein limited ingredient wet food gives cleaner ingredient control at a more accessible price point, with simpler supply chains reducing cross-contamination risk. But I need to know: what are the confirmed sensitivities, and are we dealing with skin, gut, or both? That changes everything here.

Fair final challenge — ingredient mislabeling is a documented problem in pet food. It's real. Here's where I land: for a budget-conscious owner with a reactive Cavapoo and ongoing symptoms, I'm recommending Forthglade Complete Meal Grain Free single-protein wet food — specifically the single-meat varieties like turkey or duck. Forthglade manufacture in their own dedicated facility in Devon, publish clear ingredient sourcing, and their limited ingredient approach means fewer contamination vectors than most hydrolysed kibbles produced on shared lines. Wet food also wins here because ingredient lists are simpler, processing is lower, and there's less binder/filler risk than dry. The practical advice alongside it: rotate nothing, introduce one protein and stay on it for 8 weeks minimum, eliminate all treats except plain-cooked single protein, and keep a symptom diary. This is still a vet-supported decision — but as an accessible, clean, affordable starting point, Forthglade is my confident recommendation.