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Purpose The theory of planned behavior (TPB) emerged as one of the main theoretical bases for understanding consumer intentions and behaviors, with robust results covering different topics. In the context of food, the use of theory has motivated the replication and extension of the model under different circumstances. The paper aims to discuss these issues. Design/methodology/approach The aims of this meta-analysis were to synthesize the literature on TPB in the food choice context and analyze the moderator effect on direct relationships under theoretical, methodological and cultural circumstances A random-effects meta-analysis of 155 studies (n=367.994) was conducted. Findings There was a robustness in the application of the TPB model to predict food choice; in particular, attitude was the stronger predictor of intention (r=0.386). The analysis of moderators showed that food origin, life cycle, involving technology, healthcare, ethical concerns, motivation and convenience change the original model relations. Research limitations/implications This meta-analysis is limited by the scope of the investigated literature and publication bias. This approach contributes to the literature in two ways. It confirms the robustness of the theoretical model for predicting behaviors in the context of food choice. Furthermore, this research is the first to provide support to sample, cultural and situational moderators. Originality/value The findings offer insights into the food choice context and identify some gaps and opportunities for future research.

The increasing number of food contamination events has called the attention of both practitioners and scholars to food safety problems and their consequences. Many of these events are related to the supply chain because food production is now a global process of commoditized goods, made by large corporations that purchase inputs from producers in many countries. Given the linkage between supply chain and food safety issues, we investigated how studies in the supply chain management area have examined food safety issues, exploring some of their important characteristics. To do so, we conducted a systematic literature review of 46 papers, published in 23 journals, indexed in the Web of Science database. As a result, we pointed out some main characteristics of these papers, including journal attributes, authorship data, citation network, methodological characteristics, and theoretical approaches. Results serve as a reference to scholars and allow us to discuss some potential opportunities for future research in the field of food safety in the supply chain management area.

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