Dog Grape & Raisin Toxicity Calculator
Don't wait for symptoms. Grapes and raisins are highly toxic to dogs and can cause sudden kidney failure. Use this tool to check if the amount eaten is dangerous.
Why are raisins and grapes toxic to dogs?
The exact toxic substance in grapes and raisins is not definitively known, but it is believed to be tartaric acid. Ingestion can lead to sudden, acute kidney failure in dogs.
How many raisins are toxic to a dog?
Toxicity is highly unpredictable. Some dogs can eat many with no effect, while others experience kidney failure after eating just a few. A common toxic threshold is 0.1 oz of raisins per lb of body weight (approx. 2-3 raisins per lb).
What are the signs of grape or raisin poisoning?
Early symptoms include vomiting, diarrhea, lethargy, and increased thirst. As kidney failure progresses, the dog may stop producing urine, lose its appetite, and show signs of abdominal pain.
What should I do if my dog ate a raisin?
Because toxicity is unpredictable and potentially fatal, you should contact a veterinarian or poison control immediately, even if the amount seems small. Inducing vomiting is often the first step in treatment if done quickly.