Dietitians say summer travel can disrupt normal eating routines, including long drives, early flights, airport delays, and access to unfamiliar foods. They note that road trips often involve convenience stops and snack choices, while airports and hotels can encourage reliance on packaged items or high-calorie foods. According to the guidance, travelers can reduce diet disruption by planning ahead and selecting snacks that align with healthier eating goals rather than skipping meals or defaulting to the most readily available options. The advice also covers what to eat during airport travel, where waits and limited menus may affect portion sizes and meal timing. For hotel stays and restaurants in new locations, dietitians recommend being mindful of what is available and making practical substitutions when possible. Overall, the sources emphasize that travel does not have to derail dietary plans if people prepare for common triggers such as hunger during delays, late or missed meals, and extra temptation from snack-heavy environments.