CAN DOGS EAT RHUBARB?
Rhubarb leaves contain soluble oxalate crystals that cause kidney failure — the stalks are safer but still not recommended for dogs.
Can Dogs Eat Rhubarb?
Why?
Rhubarb leaves contain soluble calcium oxalates and oxalic acid in high concentrations. When ingested, these bind calcium in the bloodstream, causing hypocalcemia, and deposit as crystals in kidney tubules, causing acute kidney failure.
The rhubarb stalk (the edible human portion) contains significantly lower oxalate levels but still poses risk in large amounts. The leaves are the most dangerous part and should be kept completely away from dogs.
How much is dangerous?
The leaves are toxic at relatively small amounts. Stalk toxicity requires larger quantities but should still be avoided.
What are the symptoms?
- drooling
- vomiting
- diarrhea
- lethargy
- weakness
- tremors
- bloody urine
- kidney failure in severe cases
What should I do?
Contact your vet immediately if any rhubarb leaves were ingested. Kidney function monitoring and IV fluid support may be needed.
Frequently asked questions.
Can dogs eat rhubarb pie?
No. Rhubarb pie contains rhubarb stalks (lower oxalate but still a risk), plus often xylitol or large amounts of sugar. Avoid entirely.
Disclaimer: This information is for educational purposes only and does not constitute veterinary advice. Every dog is different. Always consult your veterinarian before making changes to your dog's diet or in the event of a potential poisoning emergency.