* Chocolate: Chocolate contains theobromine, which is a compound that can be toxic to dogs. The amount of theobromine in chocolate varies depending on the type of chocolate, but even small amounts can be harmful to dogs. Symptoms of chocolate poisoning include vomiting, diarrhea, increased thirst, panting, and seizures.
* Grapes and raisins: Grapes and raisins can cause kidney failure in dogs. The exact reason for this is unknown, but it is thought that the compounds in grapes and raisins may damage the kidneys. Symptoms of grape or raisin poisoning include vomiting, diarrhea, lethargy, and decreased appetite.
* Macadamia nuts: Macadamia nuts can cause a variety of symptoms in dogs, including vomiting, diarrhea, weakness, and tremors. The exact reason for this is unknown, but it is thought that the compounds in macadamia nuts may interfere with the dog's nervous system.
* Dairy products: Some dogs are lactose intolerant, which means that they cannot digest the sugar in milk and other dairy products. Lactose intolerance can cause vomiting, diarrhea, and gas.
* Onions and garlic: Onions and garlic contain compounds that can damage the red blood cells in dogs. This can lead to anemia, which is a condition in which the blood does not have enough red blood cells. Symptoms of anemia include weakness, lethargy, and pale gums.
* Xylitol: Xylitol is a sugar substitute that is often used in chewing gum, candy, and toothpaste. Xylitol can cause a sudden drop in blood sugar in dogs, which can lead to seizures, coma, and even death.
* Raw meat and eggs: Raw meat and eggs can contain bacteria that can make dogs sick. These bacteria can cause vomiting, diarrhea, and fever.
* Moldy food: Moldy food can contain toxins that can make dogs sick. These toxins can cause vomiting, diarrhea, and seizures.
If you think your dog has eaten any of these foods, it is important to contact your veterinarian immediately.