* Weakness
* Depression
* Vomiting
* Tremors
* Ataxia (incoordination)
* Hyperthermia (high body temperature)
* Panting
* Paralysis
Even small amounts of macadamia nuts can be harmful to horses. If you suspect your horse has ingested macadamia nuts, contact your veterinarian immediately.
Important note: It's always best to err on the side of caution when it comes to feeding your horse anything other than their regular diet. If you have any doubts about the safety of a particular food, consult your veterinarian.