Dangerous to Deadly
If a dog ingests macadamia nuts, symptoms of a toxicosis can include: difficulty standing or walking, nausea, vomiting, tremors, hyperthermia and abnormally fast heart rate.Slashfood: Macadamia Nuts Toxic to Dogs Due to the presence of xanthine, a stimulant compound found in cocoa, chocolate can produce even worse symptoms.Vetinfo: Chocolate toxicity Chocolate-covered macadamia nuts are a veritable poison to dogs; eaten in sufficient quantities, they can cause kidney failure.Centennial Valley Animal Hospital: Macadamia Nut Toxicity