TL;DR: Sago Palms are highly toxic to dogs and can cause fatal liver failure; seek immediate emergency veterinary care if any part of the plant is ingested, even if symptoms are not yet present.
What is a Sago Palm and why is it dangerous for my dog?
The Sago Palm (Cycas revoluta) is a common ornamental plant found in gardens and as houseplants. Despite its name, it is a cycad, not a true palm. Every part of this plant is extremely toxic to dogs because it contains a toxin called cycasin. While the seeds contain the highest concentration of toxins, the leaves are also highly poisonous if ingested.
How urgent is it if my dog eats a Sago Palm?
- Ingesting any part of a Sago Palm is a life-threatening critical emergency.
- The toxin cycasin causes severe gastrointestinal irritation and rapid, aggressive liver failure.
- Even a small amount of the plant can lead to permanent organ damage or death.
- Do not wait for symptoms to appear; immediate veterinary intervention is the only way to improve the chances of survival.
Why should I take a photo of the plant for the veterinarian?
- Safely take a clear photo of the plant your dog ingested before leaving for the emergency clinic.
- A photo allows the veterinarian or poison control specialist to make a definitive identification.
- Identification helps distinguish the Sago Palm from non-toxic varieties, such as the Majesty Palm.
- Confirming the plant species allows the medical team to start life-saving protocols immediately without guesswork.
Clinical Context (Merck Veterinary Manual)
Ingestion of sago palm (cycad) leaves, seeds, and stem, which contain the glucoside cycasin and its aglycone methylazoxymethanol, is associated with hepatic and gastrointestinal disturbances and ataxia. Clinical signs include persistent vomiting, diarrhea, abdominal pain, depression, and muscular paralysis. Treatment is symptomatic, including fluid and electrolyte support. In cases of liver injury, hepatic necrosis with loss of normal hepatic architecture may be present. Gastric lavage, activated charcoal, electrolytes and fluids, and anticonvulsants may be considered.
Chapter: Toxicology, Neurology, Gastroenterology, Cardiology
Source: The Merck Veterinary Manual, 11th Edition (Page 3115)