Signs your dog has grape poisoning can include vomiting, diarrhea, lethargy, weakness, excessive thirst, increased urination, loss of appetite, and abdominal pain.
Grapes contain a toxin that may cause kidney failure in dogs. Grapes, raisins, and grape containing products can all make a dog very sick when ingested. This is called grape poisoning or grape toxicity.
The symptoms of grape poisoning in dogs can appear within a few hours to several days after ingestion, depending on the amount and type of grapes consumed. In some cases, symptoms may be evident as early as 30 minutes to 1 hour after eating grapes, while in other cases, they may take 12-24 hours to develop.

Did your dog eat a grape? Learn why grapes are toxic to dogs, the symptoms of poisoning, and when to seek emergency veterinary care to prevent kidney damage.
Dog ate grapes? Treat it as an emergency. Learn symptoms timeline, what to do immediately, and when to call your vet or poison control.

This particular example perfectly highlights why Symptoms Of Grape Pit Ingestion In Dogs After Eating Grape Pits is so captivating.
When your dog eats grapes and appears perfectly healthy, it's tempting to breathe a sigh of relief and move on. However, grape toxicity in dogs is uniquely dangerous because it can cause severe kidney damage even before visible symptoms appear.