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Recent technological improvements in nanotechnology changed the development of novel nanomaterials with enhanced characteristics. It exhibits promising applications for processing, quality evaluation, packaging, and storage of food products. Advanced nanomaterials show significant efficiency in developing functional food, nanoadditives, screening of foods, detection of contaminants, and improved packaging materials for extending the shelf life of foods. This chapter reviews food-grade nanomaterials comprehensively, emphasizing functional components delivery, encapsulation, food fortification, biosensing, and intelligent packaging. The chapter ends with challenges and research needs, providing insights into future research directions.