PDF(Pubmed)
Abstract：
Aligning institutional food procurement with planetary health targets offers opportunities to improve nutrition and reduce food-related greenhouse gas (GHG) emissions. This study compared foods procured by 19 university dining programs in the U.S. in 2022 with the EAT-Lancet planetary health diet. Each university\'s procurement was then modeled to align with the EAT-Lancet planetary health diet, and changes to Healthy Eating Index (HEI) scores and GHG emissions were evaluated. For a subset of universities that provided cost data, changes in annual total food costs were also estimated. Universities in this study exceeded EAT-Lancet planetary health targets for beef (x- = 657% of target), pork (x- = 587%), poultry (x- = 379%), and eggs (x- = 293%). All universities failed to achieve planetary health targets for legumes and nuts (x- = 39% of the target) and vegetables (x- = 68%). Aligning food procurement with the planetary health diet would result in an estimated average 46.1% reduction in GHG emissions and a 19.7 point increase in HEI scores. Universities that provided cost data saw an average 9.7% reduction in food costs in the EAT-Lancet-aligned scenario. The procurement metrics assessed in this study can help university dining programs and other institutional food service organizations set goals and monitor progress toward planetary health targets.
摘要：
使机构食品采购与全球健康目标保持一致，为改善营养和减少与食品相关的温室气体（GHG）排放提供了机会。这项研究将2022年美国19所大学餐饮项目采购的食物与EAT-Lancet行星健康饮食进行了比较。然后对每所大学的采购进行建模，以符合EAT-Lancet行星健康饮食，并评估了健康饮食指数(HEI)评分和温室气体排放的变化。对于提供成本数据的大学子集，还估计了年度食品总成本的变化。这项研究中的大学超过了EAT-Lancet牛肉的行星健康目标（x-=目标的657%），猪肉(x-=587%)，家禽(x-=379%)，和鸡蛋（x-=293%）。所有大学都未能实现豆类和坚果（x-=目标的39％）和蔬菜（x-=68％）的行星健康目标。将食品采购与行星健康饮食相结合将导致温室气体排放量平均减少46.1%，HEI分数增加19.7个百分点。提供成本数据的大学在EAT-Lancet对齐方案中的食品成本平均降低了9.7％。本研究中评估的采购指标可以帮助大学餐饮计划和其他机构食品服务组织设定目标并监测实现行星健康目标的进展。
