This study employs a systematic literature review (SLR) to investigate the changing landscape of smart labelling in the food industry. As Customer demand for transparency, traceability, and ethical consumption increases, conventional food labels are evolving into interactive communication instruments. Smart labels facilitated by technologies such as QR codes, RFID, and intelligent packaging are now integral to real time customer interaction and business decision making. Despite increasing scholarly interest, a thorough delineation of research trends, deficiencies, and prospective directions has been absent. To tackle this, adoption of SPAR-4-SLR protocol was done to examine 43 peer reviewed papers (2015–2025) from Scopus utilizing Biblioshiny and Vosviewer. The investigation identified few predominant topics like food safety, customer behaviors, and technological integration while also highlighting under discovered topics like RFID and packaging designs. Result indicated a shift from a compliance orientated labeling to an interactive digital approach that foster consumer trust. This review provides essential insights for scholars, legislators, and industry executives seeking to create data-driven, customer-focused labelling systems in the digital era.