Macadamia nuts are have been shown to be toxic to dogs at doses as low as 2.4g per kg body weight. They cause a variety of signs including weakness, lethargy, vomiting, tremors and weakness in the back legs and a fever. Severely affected dogs may not be able to stand.
Although the problems may resolve without treatment within 48hours, some animals have been reported to develop complications especially those with pre-existing conditions. In addition, unless there is a definite chance of access to Macadamia nuts, the signs of intoxication can often be similar to other more serious problems like snake envenomation, spinal problems, meningitis, etc. If you suspect your dog may have Macadamia nut toxicity or any other toxicity, call your regular veterinarian or WAVES on 9412 5700 for advice.