澳大利亚典型和心脏健康饮食模式的可持续性和成本
Rachel E Cobben1,2,3, Clare E Collins1,2, Karen E Charlton4
1School of Health Sciences, College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW 2308, Australia.
与典型的澳大利亚饮食 (TAD) 相比,心脏健康的澳大利亚饮食 (HAD) 显著减少碳排放. 然而,HAD的价格比HAD高出51%,这凸显了可负担性作为可持续饮食选择的关键挑战.
科学领域:
- 环境科学 环境科学
- 营养科学 营养科学
- 卫生经济学 卫生经济学
背景情况:
- 饮食模式显著影响人类健康和环境可持续性.
- 评估不同饮食的环境和财务权衡对公共卫生和政策至关重要.
- 典型的澳大利亚饮食 (TAD) 和心脏健康的澳大利亚饮食 (HAD) 代表着不同的营养和环境特征.
研究的目的:
- 量化和比较HAD与TAD的环境足迹和财务成本.
- 评估饮食转变对温室气体排放的影响,使用全球变暖潜力 (GWP*) 度量.
- 确定每种饮食对环境影响有贡献的关键食物组.
主要方法:
- 从交叉养试验中对两个模拟的饮食模式进行二次分析.
- 使用全球变暖潜力 (GWP*) 度量计算单个和混合食品的环境足迹.
- 来自澳大利亚一家大型超市的食品价格的确定,用于成本分析.
主要成果:
- 与TAD (2.83公斤CO2e) 相比,HAD每天产生的二氧化碳当量 (CO2e) 减少了23.8% (2.16公斤CO2e).
- 肉类和自由裁量项是TAD足迹的主要贡献者,而乳制品和蔬菜主导了HAD的足迹.
- 结果发现,HAD比TAD贵了51%.
结论:
- 转向HAD可以大幅减少二氧化碳排放,为健康和环境带来共同益处.
- 由于HAD的成本较高,这对其广泛采用构成了重大障碍.
- 制定策略,使健康,方便的食物更实惠,对于促进可持续的饮食模式至关重要.
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