Chocolate is one of the most well-known toxic foods for dogs. It contains theobromine and caffeine, which speed up dogs' heart rates and affect their nervous systems. Even a tiny amount can cause vomiting, diarrhea, or hyperactivity.
Grapes and raisins may seem harmless, but they can cause kidney failure in dogs. Even a small amount can make a dog sick, leading to vomiting, diarrhea, and lethargy.
Onions and garlic contain compounds that can damage a dog's red blood cells, leading to anemia. Whether raw, cooked, or powdered, they are dangerous in any amount.
Avocados contain a substance called persin, which is toxic to dogs in large amounts. The highest concentration of persin is found in the pit, skin, and leaves. Eating avocado can cause vomiting, diarrhea, and stomach pain in dogs.
Macadamia nuts are highly toxic to dogs and can cause serious health issues. Even a small amount can lead to weakness, vomiting, tremors, and overheating. Some dogs experience difficulty walking or standing due to muscle weakness.
Xylitol is a sugar substitute in sugar-free gum, candy, and peanut butter brands. It can cause a dangerous drop in blood sugar levels, leading to weakness, vomiting, and seizures. In severe cases, xylitol poisoning can result in liver failure and death.
Alcohol is hazardous for dogs, even in small amounts. It can cause vomiting, diarrhea, coordination problems, and breathing difficulties. In severe cases, alcohol poisoning can lead to coma or death.