Diet Quality and Water Scarcity: Evidence from a Large Australian Population Health Survey.

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ID: 49217
2019
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Abstract
There is widespread interest in dietary strategies that lower environmental impacts. However, various forms of malnutrition are also widely prevalent. In a first study of its kind, we quantify the water-scarcity footprint and diet quality score of a large (>9000) population of self-selected adult daily diets. Here, we show that excessive consumption of discretionary foods-i.e., energy-dense and nutrient-poor foods high in saturated fat, added sugars and salt, and alcohol-contributes up to 36% of the water-scarcity impacts and is the primary factor differentiating healthier diets with lower water-scarcity footprint from poorer quality diets with higher water-scarcity footprint. For core food groups (fruits, vegetables, etc.), large differences in water-scarcity footprint existed between individual foods, making difficult the amendment of dietary guidelines for water-scarcity impact reduction. Very large reductions in dietary water-scarcity footprint are possible, but likely best achieved though technological change, product reformulation and procurement strategies in the agricultural and food industries.
Reference Key
ridoutt2019dietnutrients Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Ridoutt, Bradley G;Baird, Danielle;Anastasiou, Kimberley;Hendrie, Gilly A;
Journal Nutrients
Year 2019
DOI
E1846
URL
Keywords
life cycle assessment water footprint dietary guidelines discretionary food sustainable diet sustainable food production sustainable food systems water use

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