Which Diet Has the Least Environmental Impact on Our Planet? A Systematic Review of Vegan, Vegetarian and Omnivorous Diets
By Bingli Clark Chai, Johannes Reidar van der Voort, Kristina Grofelnik, H. G. Eliasdottir, Ines Klöss, F. Perez-Cueto. Sustainability, 2019
241 citations recorded by the source corpus.
The food that we consume has a large impact on our environment. The impact varies significantly between different diets. The aim of this systematic review is to address the question: Which diet has the least environmental impact on our planet? A comparison of a vegan, vegetarian and omnivorous diets. This systematic review is based on 16 studies and 18 reviews. The included studies were selected by focusing directly on environmental impacts of human diets. Four electronic bibliographic databases, PubMed, Medline, Scopus and Web of Science were used to conduct a systematic literature search based on fixed inclusion and exclusion criteria. The durations of the studies ranged from 7 days to 27 years. Most were carried out in the US or Europe. Results from our review suggest that the vegan diet is the optimal diet for the environment because, out of all the compared diets, its production results in the lowest level of GHG emissions. Additionally, the reviewed studies indicate the possibility of achieving the same environmental impact as that of the vegan diet, without excluding the meat and dairy food groups, but rather, by reducing them substantially.
Subfields: Ecology, Food Science, Management, Monitoring, Policy and Law
View Paper: https://www.semanticscholar.org/paper/8f4ed5e3cddc171dec48bad92ea8e0aee8e3ba9e
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Citations in the corpus
- Gender Differences in Attitudes to Vegans/Vegetarians and Their Food Preferences, and Their Implications for Promoting Sustainable Dietary Patterns–A Systematic Review (2020, background): “This nutritional pattern places a considerably lesser burden on the natural environment, while intensive animal farming contributes to environmental damage and climate change [1,2].”