Is Rhubarb Toxic to Cats?

Yes — Rhubarb is severely toxic to cats

While rhubarb stalks are edible for humans, the leaves contain dangerously high levels of oxalic acid. Pets that chew on rhubarb leaves can develop kidney failure.

Symptoms in Cats

If your cat eats Rhubarb, watch for these symptoms (onset: 30 minutes to 2 hours):

Drooling
Vomiting
Diarrhea
Tremors
Kidney failure
Blood in urine

What To Do

Veterinary emergency. Leaves contain high oxalate concentrations that can cause kidney damage. Seek immediate care.

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

Cat-Safe Alternatives to Rhubarb

✓ Wheatgrass ✓ Mint ✓ Basil

Quick Facts

Scientific Name

Rheum rhabarbarum

Also Toxic to Dogs?

Yes (severe)

Toxic Compound

Oxalic acid and soluble oxalates

Toxic Parts

leaves

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