Yes, there are several foods that can be dangerous or harmful to hedgehogs. It's essential to be cautious about what you feed them to ensure their health and well-being. Here are some foods to avoid:

1. **Chocolate**: Just like many pets, hedgehogs should never consume chocolate, as it contains theobromine, which is toxic to them.

2. **Onions and Garlic**: These can cause gastrointestinal upset and may lead to more severe health issues like hemolytic anemia.

3. **Citrus Fruits**: While some fruits are safe in moderation, citrus fruits like oranges and lemons can upset a hedgehog’s stomach.

4. **Dairy Products**: Hedgehogs are lactose intolerant, so milk, cheese, and other dairy products can lead to diarrhea and other digestive problems.

5. **Avocado**: This fruit contains persin, which can be toxic to hedgehogs and may cause respiratory distress or heart issues.

6. **Raw Meat and Fish**: While hedgehogs are insectivores, raw meat and fish can contain harmful bacteria and parasites that could make them sick.

Always ensure that any treats or foods are specifically safe for hedgehogs, and consult with a veterinarian if you're unsure about their diet. A balanced diet for hedgehogs typically includes high-quality cat food, insects, and some fruits and vegetables in moderation.

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Topics covered in this question:

Hedgehog Care Hedgehog Health Hedgehog Diet Pet Nutrition Dangerous Foods