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 cause kidney failure in dogs, even in small quantities. Symptoms include vomiting, lethargy, and loss of appetite.
3. **Onions and Garlic**: These contain compounds that can damage a dog’s red blood cells, leading to anemia. Symptoms may take a few days to appear and include weakness and lethargy.
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 a rapid insulin release in dogs, leading to hypoglycemia (low blood sugar), seizures, and liver failure.
6. **Alcohol**: Even small amounts can be dangerous, leading to vomiting, diarrhea, difficulty breathing, and even death.
7. **Caffeine**: Found in coffee, tea, and certain sodas, caffeine can cause restlessness, rapid breathing, heart palpitations, and muscle tremors.
To keep your dog safe, always check labels and avoid giving them any human food without first confirming its safety. If you suspect your dog has ingested something toxic, contact your veterinarian immediately.
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