Foods that are harmful to our teeth typically include:

1. **Sugary Foods**: Candy, sweets, and desserts can lead to tooth decay as sugar feeds harmful bacteria in the mouth.
2. **Acidic Foods**: Citrus fruits, sodas, and certain pickled foods can erode tooth enamel.
3. **Sticky Foods**: Foods like caramel and dried fruits can cling to teeth and are hard to remove, contributing to cavities.
4. **Starchy Foods**: Chips and bread can break down into sugars in the mouth, promoting decay.

It's essential to maintain good oral hygiene and limit these types of foods for healthier teeth.