The impact of food loss and waste (FLW) generation on food supply chains' (FSC) sustainability represents a challenge embodied in the Sustainable Development Goal (SDG) 12.3. This problem requires a methodology to measure such an impact in a rigorous, holistic, and standardized way that can be applied to any FSC. This paper aims to develop and validate a single index to assess the readiness of FSCs to implement FLW prevention strategies and measure their impact: the so-called FOODRUS index. The co-creation methodology followed incorporates experts and FSC stakeholders feedback. The index has been validated in 3 FSCs: The Slovak pilot scored 74.35%, the Spanish pilot reached 68.79%, and the Danish pilot was rated 61.14%. Its calculation, eased by the FOODRUS index self-assessment tool (described in the Appendix), allows quick diagnosis of the FSC capability to implement FLW prevention strategies considering both the knowledge provided by experts and the experience of the FSC stakeholders that participated in its co-creation process. In this way the FSC can assess its FLW prevention performance at a strategic and management level, with the aim of improving its sustainability impact.

中文翻译：

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FOODRUS 指数：从整体角度评估有效预防粮食损失和浪费管理的适用性

粮食损失和浪费 (FLW) 的产生对食品供应链 (FSC) 可持续性的影响是可持续发展目标 (SDG) 12.3 中体现的一项挑战。这个问题需要一种可以应用于任何 FSC 的方法来以严格、全面和标准化的方式衡量这种影响。本文旨在开发和验证一个单一指数来评估 FSC 实施 FLW 预防策略的准备情况并衡量其影响：即所谓的 FOODRUS 指数。所遵循的共同创造方法吸收了专家和 FSC 利益相关者的反馈。该指数已在3个FSC中得到验证：斯洛伐克试点得分为74.35%，西班牙试点达到68.79%，丹麦试点得分为61.14%。通过 FOODRUS 指数自我评估工具（附录中所述）简化了其计算，考虑到专家提供的知识和参与其合作的 FSC 利益相关者的经验，可以快速诊断 FSC 实施 FLW 预防策略的能力。 -创作过程。通过这种方式，FSC 可以在战略和管理层面评估其 FLW 预防绩效，以提高其可持续性影响。