Chocolate Contains theobromine, which is toxic to dogs and can cause vomiting, seizures, or even death, especially dark chocolate.
Grapes and Raisins These can cause kidney failure in dogs, even in small amounts.
Onions and Garlic These can damage a dog's red blood cells, leading to anemia. Cooked, raw, or powdered forms are all harmful.
Avocado Avocados contain persin, which can cause vomiting and diarrhea in dogs.
Xylitol (Artificial Sweetener) Found in sugar-free gum and baked goods, xylitol can lead to a dangerous drop in blood sugar and liver damage.
Cooked Bones Cooked bones can splinter easily, causing choking or intestinal injuries.
Caffeine Coffee, tea, and energy drinks contain caffeine, which can lead to hyperactivity, rapid heart rate, or seizures.
Raw Dough with Yeast The yeast in raw dough can expand in a dog's stomach, leading to bloating and severe discomfort.