Chocolate contains theobromine, a substance that is toxic to dogs. Dark chocolate and baking chocolate have higher theobromine levels and can cause severe reactions, including vomiting, diarrhea, increased heart rate, and, in extreme cases, seizures.
Grapes and raisins can cause kidney failure in dogs. Even small amounts can be toxic, leading to symptoms like vomiting, lethargy, and decreased appetite.
Onions and garlic, whether raw, cooked, or in powdered form, contain compounds that can damage a dog's red blood cells, leading to anemia. Symptoms may include weakness, lethargy, and pale gums.
Xylitol is a sugar substitute found in many sugar-free products, including gum, candy, and baked goods. Ingesting xylitol can cause a rapid release of insulin, leading to hypoglycemia (low blood sugar). Symptoms may include vomiting, loss of coordination, and seizures.
Alcohol, even in small amounts, can be toxic to dogs. It can cause vomiting, diarrhea, difficulty breathing, and even death in severe cases. Keep alcoholic beverages out of your dog's reach.
Avocado contains a substance called persin, which can be harmful to dogs, especially in large quantities. Ingestion may lead to vomiting and diarrhea.
Macadamia nuts can cause weakness, vomiting, tremors, and hyperthermia in dogs. Keep foods containing macadamia nuts, such as cookies or candies, away from your pets.
Cooked bones can splinter and cause intestinal blockages or damage as they pass through the digestive tract. Avoid giving your dog cooked bones, particularly those from poultry or fish.