Maltese coat staining from food dyes & grains

White coat staining in Maltese is genuinely one of the more frustrating things to unpick — it looks like a grooming issue but it's often coming from the inside, and artificial dyes plus grain sensitivity are two of the more common dietary culprits. True food allergies in dogs are actually less common than food intolerances, and the most reliable way to get to the bottom of it is an elimination diet using a novel or hydrolysed protein food with no grains and absolutely no artificial colouring. To point you in the right direction — how old is your Maltese and roughly how long has the staining been going on? And have you already tried switching foods or spoken to a vet about it?

That tracks — most supermarket foods use similar ingredients, so swapping between them isn't really an elimination diet, it's just lateral movement. Two years of reddish-brown staining around the mouth and eyes in a Maltese almost always points to porphyrins, which are compounds excreted in tears and saliva. Diet won't fix the porphyrins entirely, but removing the things that amplify the reaction — artificial dyes, grains like wheat and corn, and low-quality proteins — tends to reduce the staining noticeably over eight to twelve weeks. Can I ask what protein is currently in her food, and does she have any other symptoms like itchy paws, ear issues, or loose stools?

The paw licking and recurrent ear infections alongside the coat staining is a pretty clear pattern — that's a systemic intolerance response, not just a cosmetic issue. Chicken is one of the most common intolerance triggers in dogs because it's so widely used that sensitised dogs have often been exposed to it for years. Rice is generally fine, but it confirms she's never had a proper novel protein trial. What you want is a single novel protein she hasn't eaten before, no grains, no artificial anything — and ideally fed exclusively for eight weeks with no treats that contain chicken or wheat. Based on all of that, I'd recommend Canagan Free-Run Chicken — but actually, given the suspected chicken sensitivity, I'd steer you toward Canagan Scottish Salmon grain-free dry food instead. Salmon is a novel protein for her, it's naturally anti-inflammatory, and Canagan uses no artificial colours, flavours or preservatives. It's well-suited to small breeds and the kibble size works well for Maltese. You'd need to transition slowly over ten days and resist any chicken-based treats during the trial.

Realistically, eight to twelve weeks for meaningful improvement in the staining — coat changes are slow because you're waiting for the existing stained hair to grow out and be replaced. The paw licking and ear issues often improve faster, sometimes within three to four weeks, which is actually a useful early sign that the diet change is working. If you see no change at all in those symptoms after six weeks, it's worth going back to the vet to rule out environmental allergies or a yeast component to the ear infections, because sometimes it's both. But the coat staining specifically — don't judge the food by that alone in the first couple of months.

That's exactly the right approach — logging the paw licking weekly gives you something objective to track rather than just eyeing the coat. Stick to the salmon food exclusively, no chicken treats or toppers, and take a photo of her face staining at the start so you have a proper baseline to compare against at week eight. Good luck with it — Maltese coats can genuinely recover well once the dietary trigger is removed.