Yes, you may pack food in your carry-on or checked bag, but remember all food must undergo x-ray screening. Foods that are liquids, gels, or aerosols must comply with the 3-1-1 liquids rule.

Carrying food and drink through customs is subject to strict international agricultural and security regulations that vary significantly by country. Generally, processed and commercially packaged solid foods like crackers, chocolate, or dried fruit are allowed. However, "fresh" items such as meats, fruits, vegetables, and many dairy products are often strictly prohibited or require a permit to prevent the spread of pests and diseases. For beverages, liquid restrictions usually apply at security (the 100ml rule), but once through, you can carry drinks onto the plane. When reaching your destination, you must declare all food items on your customs form; failure to do so can result in hefty fines and confiscation, even if the item is technically permitted. Always check the specific "prohibited items" list for your arrival country, as rules for seeds, soil, and animal byproducts are rigorously enforced.