Chocolate: Chocolate contains theobromine and caffeine, which are toxic to dogs. Dark chocolate is especially dangerous, even in small amounts.
Grapes and Raisins: These fruits can cause kidney failure in dogs, even though the exact toxic substance is still unknown. It’s best to avoid giving grapes or raisins to any dog.
Onions and Garlic: Both onions and garlic, whether raw, cooked, or powdered, can damage a dog’s red blood cells and lead to anemia.
Xylitol: This sugar substitute, commonly found in sugar-free gum, candy, and baked goods, can cause a dangerous drop in a dog’s blood sugar levels and lead to liver failure.
Alcohol: Even small amounts of alcohol, whether from beer, wine, or spirits, can be extremely toxic to dogs, leading to symptoms like vomiting, disorientation, and potentially life-threatening organ damage.
Macadamia Nuts: These nuts can cause lethargy, vomiting, tremors, and hyperthermia in dogs. The exact toxic substance is unknown, but they should be avoided.
Avocados: Avocados contain a substance called persin, which can cause vomiting and diarrhea in dogs, particularly in large quantities.