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Macadamia Nuts

Poisonous to: Dogs

Level of toxicity: Generally mild to moderate

Common signs to watch for:

  • Severe lethargy
  • Increased body temperature
  • Vomiting
  • Tremors
  • Joint stiffness
  • Inability to walk

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The Macadamia tree is a member of the Protaceae family. The nut is typically cultivated from the Macadamia integrifolia and Macadamia tetraphylla trees. Depending on the amount ingested, clinical signs of severe lethargy, increased body temperature, vomiting, tremors, joint stiffness, and inability to walk (commonly hind limb) may be seen. The toxic mechanism is unknown but can effect nerve function (specifically, the motor neurons, neuromuscular junctions, muscle fibers or neurotransmitters).

Poison type: Foods

Alternate names: Macadamia integrifolia, nuts