Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

The global and regional air quality impacts of dietary change

Marco Springmann, Rita Van Dingenen, Toon Vandyck, Catharina Latka, Peter Witzke, Adrian Leip

Nature Communications · 2023

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Summary

This systems modelling study quantifies the global and regional health and economic benefits of dietary shifts towards plant-based diets by reducing air pollution from food production, particularly livestock agriculture. The analysis estimates 108,000–236,000 premature deaths averted globally (3–6%) and economic gains of USD 0.6–1.3 trillion, with particularly pronounced benefits in regions with intensive agriculture and high population density. The findings suggest dietary change incentivisation as a mitigation strategy for ambient air pollution and associated health impacts.

UK applicability

The United Kingdom, with intensive livestock agriculture and high population density, may benefit from the dietary-shift scenarios modelled; however, region-specific results are provided only for Europe, North America, and Eastern Asia, so direct UK applicability requires interpretation of the European findings.

Key measures

Premature mortality averted (number and percentage by region); economic output gains (USD trillion); air pollution reductions from dietary shifts to flexitarian, vegetarian, and vegan diets

Outcomes reported

The study estimated reductions in premature mortality and economic gains from shifts towards plant-based diets using systems models, accounting for reduced air pollution from decreased livestock production emissions.

Theme
Climate & resilience
Subject
Climate & greenhouse gas mitigation
Study type
Research
Study design
Systems modelling study
Source type
Peer-reviewed study
Status
Published
Geography
Global
System type
Food supply chain
DOI
10.1038/s41467-023-41789-3
Catalogue ID
MGmounum6z-tds3wk

Topic tags

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