Dogs are not allergic to grapes in the typical sense of an allergy; rather, grapes are toxic to dogs. Even a small amount of grapes or raisins can cause severe toxic reactions in dogs, potentially leading to acute kidney failure, which can be fatal. The exact toxic substance in grapes is still unknown, but tartaric acid is suspected to be a key culprit. Because of this toxicity, dogs should never be given grapes or raisins in any amount. Signs of grape toxicity in dogs include vomiting, diarrhea, lethargy, loss of appetite, abdominal pain, dehydration, and potentially kidney failure. Immediate veterinary attention is critical if a dog consumes grapes or raisins.
In summary, dogs are not allergic to grapes but are highly susceptible to grape toxicity, which is serious and potentially lethal. It is essential to keep grapes and raisin products away from dogs and seek urgent veterinary care if ingestion occurs.
