Chocolate: Toxic to dogs, chocolate contains theobromine, which can cause vomiting, diarrhea, seizures, and even death.
Grapes and Raisins: These fruits can cause kidney failure in dogs, leading to symptoms like vomiting, diarrhea, and lethargy.
Xylitol: Found in sugar-free gum, candy, and some peanut butter, xylitol can cause a rapid release of insulin in dogs, leading to hypoglycemia and liver failure.
Onions and Garlic: Both onions and garlic contain compounds that can damage a dog's red blood cells, leading to anemia and other health issues.
Avocado: While the flesh of an avocado is not toxic to dogs, the pit and skin contain persin, which can cause vomiting and diarrhea in dogs.
Alcohol: Even small amounts of alcohol can be toxic to dogs, causing symptoms like vomiting, diarrhea, difficulty breathing, and even coma or death.
Macadamia Nuts: Macadamia nuts can cause weakness, vomiting, tremors, and hyperthermia in dogs, and in severe cases, they may even cause paralysis.
Raw Eggs: Raw eggs can contain salmonella or E. coli, which can cause food poisoning in dogs and humans alike.
Bones: Cooked bones can splinter and cause serious injuries to a dog's mouth, throat, or digestive tract, while raw bones can harbor bacteria like Salmonella or E. coli.