Here's why:
* Individual sensitivity varies: Dogs, like humans, have different metabolisms and sensitivities. Some dogs might be able to process small amounts of chocolate without showing obvious symptoms, while others may react strongly even to tiny amounts.
* Theobromine levels matter: Dark chocolate contains significantly higher levels of theobromine, the compound toxic to dogs, than milk chocolate. So, a small piece of dark chocolate could be far more harmful than a whole bar of milk chocolate.
* Size matters: Smaller dogs are more vulnerable to the effects of chocolate due to their smaller body weight.
* Symptoms might be subtle: Even if a dog doesn't exhibit vomiting, diarrhea, or hyperactivity, it doesn't mean they're not experiencing negative effects. Chocolate can lead to long-term health issues, like heart problems and seizures, even without immediate symptoms.
It's best to err on the side of caution and NEVER give your dog chocolate, regardless of how they've reacted in the past. Chocolate is a known toxin for dogs, and even small amounts can be dangerous.
If your dog ingests chocolate, contact your veterinarian immediately. They can assess the situation and advise on appropriate treatment.