Dog Food Allergy Diet Trial: Golden Retriever

Good news that your vet has already ruled out environmental allergies — that actually puts you in a strong position, because you know you're dealing with something dietary and you can attack it methodically. True food allergies in dogs are less common than intolerances, but both respond well to the same approach: a strict elimination diet using a novel or hydrolysed protein that your dog has never eaten before. The gold standard for a vet-recommended diet trial is usually 8–12 weeks with no other food at all. Before I point you toward a specific product, can you tell me a bit more — what symptoms is your Golden showing, how long has this been going on, and has the vet suggested any particular type of diet to start with?

Paw chewing, itchy skin, and recurring ear infections together are a very classic picture for a food-driven reaction in Goldens — they're actually one of the breeds most prone to this. Your vet is spot on with the hydrolysed protein recommendation. The reason hydrolysed foods work so well for diagnosis is that the proteins are broken down into fragments too small for the immune system to react to, so even if the original protein source is something she's eaten before, it won't trigger a response. That makes the trial much cleaner than guessing at a novel protein. For a 9-year-old at this stage I'd go with one specific product — can I ask her current weight roughly? It'll help me point you to the right bag size, but the product recommendation itself won't change.

Perfect — at 28kg she's a solid medium-large, and the fact she's still active is a good sign. My clear recommendation is Royal Canin Anallergenic dry dog food. It uses hydrolysed soy protein and a single carbohydrate source, and it's one of the very few diets specifically formulated to meet the strict criteria for a proper diagnostic elimination trial — it's the same food many vets use in-clinic. Crucially, it contains no intact animal proteins at all, which removes the most common triggers entirely. For the trial to mean anything, it needs to be the only thing she eats for 8–12 weeks — no treats, no scraps, no flavoured supplements. The 3kg bag is a good starting point to make sure she takes to it before you commit to larger quantities, though for a 28kg dog you'll get through it in about three weeks, so buying a 7kg or 12kg bag alongside is more economical once you know she accepts it. It's available on Amazon UK. Keep the food diary your vet mentioned — if symptoms improve significantly by week 6–8, that's strong evidence you've found the culprit category, and you can then reintroduce foods one at a time to identify the specific trigger.

Completely reasonable question. Royal Canin Anallergenic is nutritionally complete and balanced for adult dogs, so it's fine as her sole diet during the trial. At 9, Goldens are senior but not frail, especially if she's still active, and 8–12 weeks on this food won't cause any nutritional gaps. If her vet has flagged any kidney or joint concerns separately — which is worth checking at her age — it's worth a quick call to confirm, but for an otherwise healthy older Golden doing a diagnostic trial, this is a safe and well-validated choice. The scratching and ear infections are almost certainly reducing her quality of life more than the diet change will.

That's a sensible plan. Mention to your vet that you've gone with Royal Canin Anallergenic specifically — they'll likely approve, and it means they can track the trial against a known baseline. Good luck with it; most dogs show a noticeable improvement in skin and ears within four to six weeks if food really is the cause. Keep the diary consistent and you'll have genuinely useful information at the end of it.