Monday, June 04, 2018

Macadamia nut toxicity

Macadamia nuts come from Macadamia tetraphylla or Macadamia intergrifolia trees. The nuts contain sugars (4%) and oils (up to 80%).

Macadamias can be toxic to dogs. Toxicosis can occur in dog after ingestion of commercially available macadamia nuts or macadamia nut-containing cookies or candies. Toxicosis can occur year round, although it is more likely to occur during holiday seasons.

The mode of action is unknown, but appears to involve neurotransmitters or neuromuscular junctions, motor neurons and muscle fibers.

The most common signs: are weakness, depression, vomiting, ataxia, tremors and hyperthermia. Joint and muscle pain, and swelling have also been reported. Clinical signs can develop when 2.4 – 62.4 g/kg of macadamia nuts have been ingested. It can develop within 12 hours of ingestion.
Macadamia nut toxicity
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