Advancing 'sustainable food systems' requires an understanding of food-consumption habits over time and their social-environmental-health implications. This paper presents a multi-year household food-consumption sustainability-assessment framework. It uses a database of 120,000 Israeli households to uncover consumption trends within various food categories over two decades. It explores changes in consumption habits and selected aspects of sustainability across different household types. Trends are presented for different types of households (small, medium, and large; younger and older; wealthy and poor). The changes in consumption and selected aspects of sustainability implications were analyzed, and a unified sustainability score was developed. It revealed a clear dichotomy between groups: while wealthy adults and the elderly food consumption, environmental footprint and nutrient intake grow, large and young families exhibit a decrease in environmental impact and nutrient intake. The outcomes of the analysis could be used to direct actions fit to a specific type of household and lifestyle.

中文翻译：

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家庭食品消费可持续性方面的综合多年评估框架

推进“可持续食品系统”需要了解长期的食品消费习惯及其对社会环境健康的影响。本文提出了一个多年家庭食品消费可持续性评估框架。它使用包含 120,000 个以色列家庭的数据库来揭示二十年来各种食品类别的消费趋势。它探讨了不同家庭类型的消费习惯变化和可持续发展的选定方面。呈现了不同类型家庭（小型、中型和大型；年轻和年长；富裕和贫穷）的趋势。分析了消费的变化和可持续发展影响的选定方面，并制定了统一的可持续发展得分。它揭示了群体之间明显的二分法：虽然富裕的成年人和老年人的食物消费、环境足迹和营养摄入量增加，但大家庭和年轻家庭的环境影响和营养摄入量却下降。分析结果可用于指导适合特定类型家庭和生活方式的行动。