Is Mexican Cycad Toxic to Dogs?

Yes — Mexican Cycad is severely toxic to dogs

All cycads contain deadly cycasin. This includes Dioon, Zamia, Macrozamia, and Cycas species. They are among the most lethal plants for dogs.

Symptoms in Dogs

If your dog eats Mexican Cycad, watch for these symptoms (onset: 1 to 3 days):

  • Vomiting
  • Liver failure
  • Jaundice
  • Seizures
  • Death

What To Do

Veterinary emergency. Contains same liver-destroying toxins as Sago Palm. 50%+ mortality rate.

This is a veterinary emergency for dogs. Call your vet or ASPCA Poison Control (888) 426-4435 immediately.

Dog-Safe Alternatives to Mexican Cycad

✓ Areca Palm ✓ Kentia Palm

Quick Facts

Dioon edule

Yes (severe)

Cycasin and macrozamin

all parts, seeds

Sources: ASPCA Animal Poison Control Center, Pet Poison Helpline. View full Mexican Cycad toxicity profile.