1. **Onions and Garlic**: These can be toxic to dogs and can lead to a condition called hemolytic anemia. Even small amounts can be harmful, so it's best to avoid them entirely.
2. **Avocado**: The pit and skin of avocados contain persin, which can be toxic to dogs. While the flesh is less harmful, it's still recommended to keep avocados out of your dog's diet.
3. **Mushrooms**: While not all mushrooms are toxic, some can be extremely dangerous and cause severe health issues. It’s best to avoid giving any type of mushroom to your Boxer.
4. **Tomatoes (Green parts)**: Ripe tomatoes can be safe in small amounts, but the green parts (leaves and stems) contain solanine, which can be harmful.
5. **Potatoes (Raw)**: Raw potatoes, especially green ones, contain solanine as well. Cooked potatoes can be safe in moderation, but they should not be a staple in your dog’s diet.
Always consult with your veterinarian before introducing new foods into your Boxer’s diet, and ensure that any vegetables given are cooked and served in moderation to avoid digestive issues. If you're ever unsure about a specific vegetable, it's always better to err on the side of caution and avoid it.
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