1. **Chocolate**: Contains theobromine, which is toxic to dogs. Dark chocolate and baking chocolate are particularly dangerous. Symptoms of chocolate poisoning include vomiting, diarrhea, rapid breathing, increased heart rate, and seizures.
2. **Grapes and Raisins**: Even small amounts can cause kidney failure in dogs. Symptoms may include vomiting, lethargy, and loss of appetite.
3. **Onions and Garlic**: These can damage a dog's red blood cells, leading to anemia. Symptoms include weakness, lethargy, and dark-colored urine.
4. **Xylitol**: A sugar substitute found in sugar-free gum, candies, and some peanut butter brands. It can cause insulin release, leading to hypoglycemia (low blood sugar), seizures, and liver failure.
5. **Alcohol**: Even small amounts can be dangerous. Symptoms include vomiting, disorientation, and potentially coma or death.
6. **Caffeine**: Found in coffee, tea, and some energy drinks, caffeine can cause restlessness, rapid breathing, and heart palpitations in dogs.
7. **Avocado**: Contains persin, which can be harmful to dogs, causing vomiting and diarrhea.
8. **Macadamia Nuts**: Can cause weakness, depression, vomiting, and tremors in dogs.
9. **Certain Plants**: Some common houseplants, like lilies, sago palms, and azaleas, are toxic to dogs and can cause various health issues.
10. **Human Medications**: Many over-the-counter and prescription medications, such as ibuprofen and acetaminophen, can be fatal to dogs.
If you suspect your dog has ingested something toxic, it's crucial to contact your veterinarian or an emergency animal poison control hotline immediately. Always keep potentially harmful substances out of reach of your pets to prevent accidental ingestion.
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