Blockchain technology plays a critical role in strengthening traceability in food supply chains (FSCs), particularly in relation to transparency, authenticity, food safety, and sustainability. This study conducts a systematic review of 518 journal articles retrieved from Scopus and Web of Science and applies latent Dirichlet allocation (LDA) topic modeling to identify dominant research trends. The analysis reveals eight key themes, including blockchain adoption enablers and challenges, consumer perceptions, supply chain traceability systems, sustainability, and food safety applications. The findings highlight significant growth in academic interest and demonstrate how blockchain improves visibility and efficiency across supply chain actors. The review offers theoretical insights into blockchain’s interdisciplinary role in FSC traceability and provides practical guidance for farmers, food industries, policymakers, and technology developers, while outlining future research opportunities.
Rejeb et al. (Wed,) studied this question.