Are all dogs affected by grapes?

No, not all dogs are affected by grapes. While grapes are known to be toxic to many dogs, there is some individual variation in sensitivity.

Here's why:

* Individual Tolerance: Some dogs might be able to eat a few grapes without showing any symptoms, while others may react very badly even to small amounts.

* Breed Differences: There's no evidence that certain breeds are more susceptible than others, but individual dogs within breeds can vary.

* Other Factors: The size of the dog, their overall health, and even the type of grape (raisins are particularly toxic) can play a role in how they react.

However, it's crucial to remember:

* Grapes are considered toxic to dogs in general. There's no safe amount or way to determine if a dog will be affected.

* Even small amounts of grapes can cause serious health problems. Symptoms can include vomiting, diarrhea, lethargy, abdominal pain, and even kidney failure.

Therefore, it's best to be safe and completely avoid giving grapes or raisins to any dog. If you suspect your dog has ingested grapes, contact your veterinarian immediately.