The Boston Celtics have specific policies regarding outside food and drinks during games at TD Garden. Generally, guests are not permitted to bring outside food or beverages into the arena. This policy is in place to ensure the security and safety of all attendees, as well as to maintain the overall event experience. However, the arena offers a wide variety of dining options and beverages available for purchase inside. Guests can find everything from traditional arena snacks to more substantial meal options throughout the venue. If you have specific dietary restrictions or needs, it may be a good idea to check the current guidelines on the Celtics' official website or the TD Garden site for any updates regarding food policies or special accommodations. It is always best to verify any specific rules before attending a game to ensure you have an enjoyable experience.