Abstract

Background: The feeding modalities used in school meal programs—such as breakfast, lunch, dinner, snacks, and take-home rations—are influenced by various factors, including supply chain constraints and technical challenges in food distribution. The methods of supply sourcing, whether through domestic or foreign food reserves via in-kind donations or purchases, play a critical role in shaping the feeding options provided. Aim: This study aims to examine the association between supply-sourcing strategies, i.e., domestic and foreign in-kind donations and national-international purchases, with the feeding modalities applied in school meal programs. Methods: The Bayesian Mindsponge Framework, combining the reasoning strengths of Mindsponge Theory and inference advantages of Bayesian analysis, was employed on a dataset of government representatives who manage large-scale school meal programs across 126 countries. Results: The findings revealed that sourcing supplies through in-kind donations from neighboring or distant countries showed a highly reliable negative association with the feeding modalities of school meal programs, while those from the national bodies showed an ambiguous relationship. The purchasing methods—whether domestic or foreign—tended to exhibit positive associations with feeding modalities, though these associations were only weakly reliable. Conclusions: The findings reveal substantial rooms to improve the effectiveness of supply purchasing strategies in enhancing school meal program feeding modalities. Further research is needed to examine the impact of sourcing supplies through domestic in-kind donations on feeding outcomes. Additionally, developing strategic plans to optimize the use of in-kind donations from international organizations is strongly recommended to avoid its negative consequences and further enhance program effectiveness.