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. 2016 Oct;19(14):2654-61.
doi: 10.1017/S1368980016000495. Epub 2016 Mar 15.

Do low-carbon-emission diets lead to higher nutritional quality and positive health outcomes? A systematic review of the literature

Charlotte Lr Payne  1 , Peter Scarborough  1 , Linda Cobiac  1
Affiliations

Do low-carbon-emission diets lead to higher nutritional quality and positive health outcomes? A systematic review of the literature

Charlotte Lr Payne et al. Public Health Nutr. 2016 Oct.

Abstract

Objective: To evaluate what is known about the relative health impacts, in terms of nutrient intake and health outcomes, of diets with reduced greenhouse gas emissions (GHGE).

Design: We systematically reviewed the results of published studies that link GHGE of dietary patterns to nutritional content or associated consequences for health.

Setting: We included studies published in English in peer-reviewed journals that included data on actual and modelled diets and enabled a matched comparison of GHGE with nutrient composition and/or health outcomes.

Subjects: Studies included used data from subjects from the general population, who had taken part in dietary surveys or prospective cohort studies.

Results: We identified sixteen eligible studies, with data on 100 dietary patterns. We present the results as dietary links between GHGE reduction and impact on nutrients to limit (n 151), micronutrient content (n 158) and health outcomes (n 25). The results were highly heterogeneous. Across all measures of 'healthiness', 64 % (n 214) of dietary links show that reduced GHGE from diets were associated with worse health indicators. However, some trends emerged. In particular, reduced saturated fat and salt are often associated with reduced GHGE in diets that are low in animal products (57/84). Yet these diets are also often high in sugar (38/55) and low in essential micronutrients (129/158).

Conclusions: Dietary scenarios that have lower GHGE compared with average consumption patterns may not result in improvements in nutritional quality or health outcomes. Dietary recommendations for reduced GHGE must also address sugar consumption and micronutrient intake.

Keywords: Dietary quality; Greenhouse gas emissions; Health outcomes; Healthy diets; Sustainable diets.

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Figures

Fig. 1
Fig. 1
The search process employed in the present review (GHGE, greenhouse gas emissions; FCRN, Food Climate Research Network)
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References

    1. Krueger J, Biedrzycki P & Hoverter SP (2015) Human health impacts of climate change: implications for the practice and law of public health. J Law Med Ethics 43, 79–82. - PubMed
    1. Solomon S, Plattner GK, Knutti R et al.. (2009) Irreversible climate change due to carbon dioxide emissions. Proc Natl Acad Sci USA 106, 1704–1709. - PMC - PubMed
    1. Garnett T (2011) Where are the best opportunities for reducing greenhouse gas emissions in the food system (including the food chain)? Food Policy 36, Suppl. 1, S23–S32.
    1. Godfray HCJ, Beddington JR, Crute IR et al.. (2010) Food security: the challenge of feeding 9 billion people. Science 327, 812–818. - PubMed
    1. Rayner M (2014) Front-of-pack and point-of-purchase labelling schemes designed for obesity prevention. In Managing and Preventing Obesity: Behavioural Factors and Dietary Interventions, pp. 325–334 [T Gill, editor]. Cambridge: Woodhead Publishing.

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