When you have dentures, you’ll need to avoid certain sticky and hard foods, including: Peanut butter Gummy candies Popcorn Shelled nuts Sesame seeds Chewing gum Chewy meats Crusty bread If you do have a chewy piece of meat or other food that you’d like to eat, be sure to cut it up into very small pieces to keep your dentures from shifting in your mouth when you bite down on it.