资源环境科技发展态势分析平台

The aim of this study is to explore the relations between the climate impact of food products and their nutritional characteristics, in order to propose a nutrient density index that quantifies these relations. Our study is based on the nutritional characteristics of the 403 most consumed food products in the Netherlands. Metabolic energy density,(1) nutrient density (Nutrient Rich Foods index: NRF) and Greenhouse Gas Emissions (GHGEs) of the products were calculated. Low GHGE intensity per 100 g correlated with positive nutritional characteristics of food products. This is true for low energy density, and high nutrient density, expressed as the well-established NRF9.3 index. This index was improved to include the contribution of food products to GHGEs. GHGEs of product groups correlate more strongly with the proposed Sustainable Nutrient Rich Foods index (SNRF). This SNRF summarizes six distinctive nutrients (three which should be encouraged and three limited), as well as (metabolic) energy density. Including such an index on food product labels could assist consumers in making better informed food choices. (C) 2016 Elsevier B.V. All rights reserved.