Hey there, Ruth!
Welcome to the Disney Parks Moms Panel! It's my pleasure to assist you with your question!
I'm thrilled to report that you are more than welcome to bring
snacks and food items that do not require heating into the theme parks. Glass containers (with the exception of small ones like baby food jars) are not permitted. Non-alcoholic beverages can also be brought into the theme parks. My family usually brings a few snacks into the parks and have never encountered any issues when doing so. With four children, we definitely like to have a few snacks on hand. My husband likes to carry a medium-sized backpack so that we have our snacks and other park touring essentials at our fingertips
Guests may also bring
coolers that are not larger than 24" long x 15" wide x 18" high into the parks. Loose or dry ice is not allowed inside the coolers; however, reusable ice packs are permitted.
Locker rentals are available in the theme parks and water parks if you prefer to store your food items while you explore the park.
I hope this information is helpful to you, Ruth. Please don't hesitate to stop by again with any additional questions. We would love to assist you further in planning a magical Walt Disney World vacation!
Jodie