What to do after ingestion
Drooling, vomiting, weakness, trembling, abnormal urination.
Seek veterinary care immediately; do not induce vomiting at home.
Soluble oxalate / oxalic acid
As in dogs, oxalate causes low blood calcium and kidney injury, and the risk is higher for smaller cats.
What to do after ingestion
Vomiting, drooling, diarrhoea, weakness, trembling, twitching or seizures (low calcium), increased urination or oxalate crystals in urine.
Treat as a poisoning: contact a veterinarian immediately and state whether leaves, stalks or a whole plant were eaten and roughly how much.
Soluble oxalate / oxalic acid
Rhubarb greens and leaves contain high levels of soluble oxalate, which binds calcium and lowers blood calcium, and can form calcium oxalate crystals that injure the kidneys.
Nutrition
Per 100 g, edible portionData source：USDA FoodData Central · SR Legacy · Accessed on：2026-09-28
Cat · Safe feeding conditions
ToxicNo additional condition notes for this food
Clinical and veterinary sources
As in dogs, oxalate causes low blood calcium and kidney injury, and the risk is higher for smaller cats.
Soluble oxalate / oxalic acid
Drooling, vomiting, weakness, trembling, abnormal urination.
Seek veterinary care immediately; do not induce vomiting at home.
Plant-leaf exposures are common in cats - keep houseplants and vegetable leaves out of reach.
Dog · Safe feeding conditions
ToxicNo additional condition notes for this food
Clinical and veterinary sources
Rhubarb greens and leaves contain high levels of soluble oxalate, which binds calcium and lowers blood calcium, and can form calcium oxalate crystals that injure the kidneys.
Soluble oxalate / oxalic acid
Vomiting, drooling, diarrhoea, weakness, trembling, twitching or seizures (low calcium), increased urination or oxalate crystals in urine.
Treat as a poisoning: contact a veterinarian immediately and state whether leaves, stalks or a whole plant were eaten and roughly how much.
Home-made rhubarb jam, pies and other bakes should be avoided too, and garden rhubarb leaves should be kept out of reach.
This website is for reference only and does not replace a licensed veterinarian. If your pet has eaten a suspected toxin or shows symptoms, contact a veterinarian or an emergency animal hospital immediately.