Neale Elizabeth, Balvert Troy, Crinnion Hannah, Craddock Joel, Lambert Kelly, Charlton Karen
School of Medicine, Health and Indigenous Sciences, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia.
Nutrients. 2025 Jan 27;17(3):464. doi: 10.3390/nu17030464.
BACKGROUND/OBJECTIVES: The Global Warming Potential Star (GWP*) refers to the amount of carbon dioxide equivalents produced by food items, with values available for = 232 Australian food products. The aim of this study was to apply GWP* values to the AUSNUT 2011-13 food composition database to facilitate the calculation of the climate footprint of Australian dietary data.
To create the , all = 5740 food and beverage items in AUSNUT 2011-13 were reviewed and GWP* values applied or calculated via a systematic approach. Direct or approximate matches to a single GWP* value were prioritised. GWP* values were then calculated for composite foods with multiple ingredients. Finally, GWP* values were approximated based on food group, adjusted using other GWP* values, or foods were excluded if no appropriate match could be found.
A total of = 5502 (95.85%) AUSNUT 2011-13 foods were matched to a GWP* value, with the majority requiring calculation based on multiple ingredients. Mean ± standard deviation GWP* values ranged from 0.18 ± 0.12 kg COe/kg ('Dairy and meat substitutes') to 5.63 ± 7.55 kg COe/kg ('Meat, poultry and game products and dishes').
The can be applied to Australian dietary data to identify the climate footprint of different dietary patterns or to provide insight into dietary changes required to decrease greenhouse gas emissions. Future research is now required to develop new GWP* values for a broader range of foods and to update this database when new Australian food composition databases are released.
背景/目的：全球变暖潜势之星（GWP*）指食品产生的二氧化碳当量数量，有232种澳大利亚食品的相关数值。本研究旨在将GWP*值应用于AUSNUT 2011 - 13食品成分数据库，以方便计算澳大利亚饮食数据的气候足迹。
为创建该数据库，对AUSNUT 2011 - 13中所有5740种食品和饮料项目进行了审查，并通过系统方法应用或计算GWP值。优先考虑与单个GWP值的直接或近似匹配。然后计算含有多种成分的复合食品的GWP值。最后，根据食物类别估算GWP值，使用其他GWP*值进行调整，或者如果找不到合适的匹配项则将食品排除。
AUSNUT 2011 - 13中共有5502种（95.85%）食品与GWP值匹配，大多数需要根据多种成分进行计算。GWP值的均值±标准差范围为0.18±0.12千克二氧化碳当量/千克（“乳制品和肉类替代品”）至5.63±7.55千克二氧化碳当量/千克（“肉类、家禽和野味产品及菜肴”）。
该数据库可应用于澳大利亚饮食数据，以识别不同饮食模式的气候足迹，或深入了解减少温室气体排放所需的饮食变化。现在需要开展进一步研究，为更广泛的食品开发新的GWP*值，并在新的澳大利亚食品成分数据库发布时更新此数据库。
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