Journal
GLOBAL FOOD SECURITY-AGRICULTURE POLICY ECONOMICS AND ENVIRONMENT
Volume 28, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.gfs.2021.100520
Keywords
Essential amino acids; Climate change; Diet; Greenhouse gas; Legume; Protein
Categories
Funding
- Santa Barbara Foundation
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Dietary protein production from animal sources contributes significantly to greenhouse gas emissions, water use, and deforestation. Legumes, as a rich and sustainable protein source, have the potential to replace animal protein in the human diet. Challenges to increasing legume consumption include crop yield fluctuations and lower profitability compared to other crops, but greater investment in legume breeding and consumer awareness could facilitate a shift towards legumes as a major protein source in the future.
Dietary protein production from animals is a major source of greenhouse gas emissions, water use, and defor-estation. Legumes are a rich source of protein but currently comprise a minor part of most human diets. Worldwide, the average consumption of legumes and meat is 21 and 112 g/person/day, respectively. Legumes are part of traditional diets in most cultures, have low greenhouse gas and water footprints, enrich the soil through nitrogen fixation, are inexpensive, and comprise a sustainable source of protein. Challenges to increased legume usage include large fluctuations in crop yields and lower profitability compared with other crops. Greater investment in legume breeding and heightened consumer awareness may facilitate a future shift to legumes as a major source of dietary protein.
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