There isnot enough research on toxin poisoning in dogs to provide good answers but we do know that some foods are extremely harmful to them. Macadamia nuts are one of them.
We currently know that dogs ingest a toxin when they eat macadamia nuts which impacts their neurological system.
In spite of the non-lethal nature of macadamia nut toxicosis your dog may experience serious discomfort that may require hospitalization. Macadamia nut toxicosis usually resolves within 48 hours.