Last reviewed against current UK veterinary guidance in April 2026

Can dogs eat rhubarb?

No — rhubarb is toxic

No. Rhubarb leaves and stems contain oxalic acid, which can cause kidney damage and low calcium in dogs.

The full picture

Rhubarb is a classic British garden plant that causes vet visits every spring. The leaves are the most toxic part — high in oxalic acid and oxalate crystals that bind with calcium and can cause kidney problems. Stems contain less but still enough to cause issues. Rhubarb desserts add sugar and sometimes pastry. Keep dogs away from rhubarb plants in the garden and never offer rhubarb in any form.

If your dog has just eaten rhubarb

Do this now

  1. Call your vet, especially if leaves were eaten
  2. Watch for drooling, weakness, tremors — call immediately if these appear
  3. Bring photos of the plant if possible

Risks to watch for

  • Kidney damage from oxalates
  • Low blood calcium
  • Tremors
  • Vomiting and diarrhoea
  • Excessive drooling

Safe portion size

None.

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Safer alternatives

  • Apple slices
  • Blueberries
  • Strawberries

Unexpected vet bills can run into thousands

One emergency visit for food poisoning can cost £500–£5,000+. Compare UK pet insurance in 60 seconds.

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Related foods

Spinach caution Grapes no
Written and reviewed by
The Can My Dog Eat editorial team

Every food page is cross-checked against UK veterinary sources including the Veterinary Poisons Information Service (VPIS), the Animal PoisonLine, PDSA, and the Merck Veterinary Manual before publication. We do not accept paid placements from brands. If you spot an inaccuracy, please let us know — we take errors seriously and correct them quickly.

Spot an error? Report it Last verified: April 2026

Checked against UK veterinary guidance — see our editorial standards and source list. If your dog has eaten something and you need urgent advice, call a vet or the Animal PoisonLine on 01202 509000.

Important: This page is general information, not veterinary advice. Every dog is different, and individual factors (age, breed, health conditions, medications) can change what's safe. If in doubt, always contact your vet — or the Animal PoisonLine on 01202 509000 in the UK.