The packaging is essential for safeguarding food quality and enhancing safety and longevity. With an increasing population and rising consumer awareness, there is an increased demand for packaging that is clean, safe, cost-effective, and environmentally friendly. Nano-sized materials are a promising solution to meet these requirements. Nanotubes, nanofibers, and nanosheets have good physical, chemical, and biological properties that make them well-suited to improve the characteristics of packaging materials. Such materials are being used in active and smart packaging technologies to preserve food and monitor products in real time. This review explores the current applications of different nano-sized materials, such as metals and oxides of metal, carbon nanotubes, and graphene oxide nanoparticles, that are used in food packaging and also discusses their roles in improving barrier properties, antimicrobial activity, and shelf life. It also analyzes the challenges and limitations, including regulatory issues, scalability, and safety concerns, and suggests future research directions to maximize the potential of nano-sized materials in food packaging.