Onion and garlic poisoning results in oxidative damage to the red blood cells (making the red blood cells more likely to rupture) and gastroenteritis (e.g., nausea, oral irritation, drooling, abdominal pain, vomiting, diarrhea).
What breed of dogs have killed more people? The Pit bull has killed the most people, surprisingly, as they are so friendly. The second breed that has killed the most people is the Rottweiler.
In these breeds, many dogs only live to 6 or 7 years old. Here are a few examples of medium to large breeds with potentially short lives: Many Golden Retrievers and Boxers die in middle age from cancer. Many Doberman Pinschers die in middle age from heart disease.