Dog Grape Toxicity: Symptoms, Treatment & What to Do
6 Nov 2026 · Dogs · 5 min read
Medical draft · pending veterinary review
If your dog has eaten grapes, raisins, sultanas or currants, contact a vet now — even if your dog seems fine. Early treatment matters most.
Why are grapes dangerous?
Grapes and dried grapes can cause acute kidney injury in dogs. Research links the toxicity to tartaric acid, and the amount that causes harm varies widely between dogs, so there is no known safe dose.
Symptoms to watch for
- Vomiting or diarrhoea, often within a few hours
- Lethargy, weakness or loss of appetite
- Abdominal pain
- Drinking and urinating more — or producing little or no urine
- Bad breath or mouth ulcers in later stages
What to do
- Note what and how much was eaten, and when
- Do not induce vomiting at home unless a vet tells you to
- Go to a vet or 24-hour emergency clinic straight away
How vets treat it
If ingestion was recent, the vet may induce vomiting and give activated charcoal. Many dogs then receive intravenous fluids and blood tests over 48–72 hours to monitor kidney values.
FAQ
Can one grape hurt my dog?
Possibly. Sensitivity differs between dogs, so any amount should be treated as an emergency and discussed with a vet.
References
Disclaimer: this article is for general information only and is not a substitute for a veterinary examination.