On embarkation day, a small quantity of non-alcoholic beverages (i.e., sparkling water, sodas, energy drinks, juice, and milk), packaged in cans or cartons, may be brought on board and must be in the guest's carry-on luggage.

In 2026, most major cruise lines like Royal Caribbean and Carnival allow you to bring a limited amount of your own milk, but typically only for infants, medical necessities, or strict dietary needs (such as specialized non-dairy or soy milks not carried onboard). Standard dairy milk for general adult consumption is often discouraged or restricted because ships already provide it for free at all dining venues and cafes. If you must bring it, it should be in its original, factory-sealed packaging. Note that ship cabins often have "coolers" rather than true refrigerators, so they may not keep highly perishable milk cold enough for safety. For travelers with babies, it is recommended to contact the cruise line's "Special Needs" or "Access" department 30 days before sailing to ensure your specific brand or volume is approved for boarding without issue at the security checkpoint.