Raw food for older dogs with cognitive decline

A 10-year-old Border Terrier showing early cognitive changes — that's exactly the kind of situation where what goes in the bowl genuinely matters. Raw feeding done well can be excellent for senior dogs, but done badly it creates nutritional gaps that cause real harm over time, and the difference is balance and sourcing. For a dog showing signs of cognitive decline, the key nutrients are DHA and EPA from oily fish, phosphatidylserine, and antioxidants like vitamin E — things a well-formulated complete raw can deliver without you having to juggle components. Before I point you anywhere specific: has your Border Terrier been on raw before, and are you looking for a ready-made complete meal or are you open to building meals yourself?

That's a sensible instinct, and starting with a complete ready-made is genuinely the right call when you're transitioning an older dog. One thing to know: switching cold turkey at 10 can cause digestive upset even in healthy dogs, so you'd phase the raw in over two to three weeks, starting with maybe 20% raw mixed into her kibble and building up slowly. For her size — Border Terriers are typically around 5–7kg — you're feeding roughly 2–2.5% of body weight per day, so around 120–150g. Now, given the cognitive angle: what's she showing? Is it disorientation, changed sleep patterns, less responsiveness? That helps me think about whether a standard senior complete gets you there or whether you'd benefit from a specific omega-3 supplement alongside it.

That evening disorientation pattern is very typical of canine cognitive dysfunction, and your vet is right to name it early — it gives you a real window to support her. DHA is the nutrient with the strongest evidence base here; it's a structural component of brain tissue and declining levels are directly linked to cognitive deterioration in dogs. My recommendation is Natures Menu Country Hunter Raw Nuggets in the Salmon and Trout variety. It's a complete, BARF-aligned frozen raw that uses whole prey ingredients including oily fish, so the DHA and EPA are coming from the food matrix rather than a supplement — which means better bioavailability. It's also smaller nuggets, which makes portion control easy at her size, and the salmon-forward recipe means you're consistently getting meaningful omega-3 levels at every meal. Alongside that, I'd add a dedicated omega-3 oil — Nordic Naturals Omega-3 Pet is a clean, well-dosed option — drizzled over her food daily. That combination gives her the best dietary shot at slowing progression.

For her specifically, I'd actually keep salmon and trout as the base and only rotate cautiously. Cognitive dysfunction dogs often do worse with sudden changes — routine is genuinely supportive for them neurologically. If you want variety, introduce one alternative protein slowly after she's settled on the salmon, and watch her behaviour as much as her digestion. Turkey or duck would be sensible additions later, but there's no nutritional reason to rush it. Get her stable on the salmon first, add the omega-3 oil from day one, and give it six to eight weeks before you assess how she's doing. You should see better coat condition relatively quickly; cognitive changes are slower to show, but owners often notice improved alertness and sleep normalisation within a couple of months.

You're in a good position — you've caught this early, your vet is engaged, and you're choosing food with intention. Natures Menu Country Hunter Salmon and Trout Nuggets plus Nordic Naturals Omega-3 Pet, phased in slowly over three weeks. Keep notes on her evening behaviour so you have something concrete to report back to your vet. She's lucky to have someone paying this much attention at 10.