If you regularly snack on macadamia nuts and foods that have macadamia nuts in them, make sure to hide your snacks from your dog. Just six raw or roasted macadamia nuts can make a dog sick.

The specific elements found in macadamia nuts are still unknown right now, but they can cause a toxic reaction if ingested by dogs.

Macadamia nuts can cause muscle weakness (specifically in the hind legs), depression, vomiting, tremors and hyperthermia in dogs. Eating chocolate with the nuts will make symptoms worse, maybe even fatal. Symptoms usually appear within 12 hours after ingestion and might last 12 to 48 hours.