1. **Chocolate**: Contains theobromine, which is highly toxic to dogs. Even small amounts can cause vomiting, diarrhea, and in severe cases, seizures or death.
2. **Grapes and Raisins**: These can lead to kidney failure in dogs. Symptoms may include vomiting, lethargy, and loss of appetite.
3. **Onions and Garlic**: Both can damage a dog's red blood cells, leading to anemia. Symptoms include weakness, lethargy, and pale gums.
4. **Avocado**: Contains a substance called persin, which can cause vomiting and diarrhea in dogs.
5. **Xylitol**: A sugar substitute found in many sugar-free products, xylitol can cause insulin release, leading to hypoglycemia (low blood sugar), seizures, and even liver failure.
6. **Alcohol**: Even small amounts can be dangerous, leading to vomiting, diarrhea, difficulty breathing, and even coma.
7. **Caffeine**: Found in coffee, tea, and some sodas, caffeine can be toxic and lead to restlessness, rapid breathing, heart palpitations, and muscle tremors.
8. **Macadamia Nuts**: These can cause weakness, depression, vomiting, tremors, and hyperthermia in dogs.
If you suspect your dog has ingested any of these foods, it’s important to contact your veterinarian immediately. Prevention is key—keep these foods out of reach and educate family and friends about what not to feed your dog.
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