Why wobbliness means immediate vet action for an 8 kg dog
Your dog's current instability is the clearest signal that macadamia toxins are affecting their nervous system. The five nuts they ate deliver enough compounds to disrupt muscle control in a dog this size, making it unsafe for them to walk unassisted. Confine them to a small area with soft bedding to prevent injury from falls while you contact the vet.
This level of neurological involvement suggests the toxins are already circulating widely. Unlike milder cases where vomiting might come first, wobbliness as an early sign often indicates a more severe reaction. Time matters here—the sooner your vet can provide supportive care, the faster they can stabilize your dog's condition.
What to expect during the first vet visit
Your vet will likely check your dog's temperature first, as macadamia toxicity sometimes causes hyperthermia. They'll assess limb strength by observing how your dog stands and walks, possibly testing reflexes in their back legs where weakness often appears first. Blood work may be recommended to rule out concurrent issues.
Treatment often involves intravenous fluids to help flush toxins and medications to control tremors if present. Your dog may need assistance standing or walking for the next 12-24 hours. Bring any remaining nuts or packaging—the vet may want to confirm these were plain macadamias without added chocolate or other hazards.
The critical next 12 hours after ingestion
Even after initial vet care, your dog's symptoms may temporarily worsen before improving. Muscle weakness can progress to temporary paralysis in severe cases, particularly in the hindquarters. Keep them in a quiet, dimly lit space to minimize stress on their nervous system, and prevent access to stairs or slippery floors.
Monitor their ability to rise from lying down—this often lags behind other improvements. Offer small amounts of water frequently, but don't force food if they're nauseous. Most dogs show noticeable improvement within a day, but full recovery of coordination sometimes takes 48 hours.
When weakness becomes an emergency
If your dog loses the ability to stand completely or develops labored breathing, return to the vet immediately. These signs suggest either an extreme reaction to macadamias or a possible secondary complication. Dogs this size can dehydrate quickly if unable to reach water bowls, so watch for dry gums or excessive panting.
Rarely, some dogs develop an abnormal heart rhythm with macadamia toxicity. Contact your vet if you notice sudden collapses, irregular pulse, or pale gums. For most cases though, with prompt care, your dog should return to normal within two days without lasting effects.
The full verdict, portion guidance and serving notes are collected on the Macadamia nuts food facts page.