According to Wiki Books, nutmeg is extremely toxic when injected intravenously (injected into the vein). Excessive consumption of the spice is also dangerous and can lead to death.
Nutmeg contains a narcotic called myristicin. In large doses (a full teaspoon or more of ground nutmeg, or 1-3 whole nutmegs at a time), nutmeg can be poisonous, it can also cause hallucinations, along with nausea, dehydration, and generalised body pain.
