Estimating low-opportunity-cost feed

Access through your institution Buy or subscribe arising from Q. Fang et al. _Nature Food_ https://doi.org/10.1038/s43016-023-00813-x (2023) Global demand for animal feed, driven by growing

meat consumption, has resulted in deforestation, carbon emissions and biodiversity loss, underscoring the need to improve the environmental sustainability of feed production1. Fang and

colleagues2 developed a linear feed allocation optimization model and estimated that feeding more low-opportunity-cost products (LCFs), such as food waste and by-products, to animals in

China could have substantial land-use-related environmental benefits. While their study contributes to advance research on sustainable feed alternatives, we question some of the key

assumptions underpinning their model and note important discrepancies between some of their predictions and observations. This is a preview of subscription content, access via your

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Products_ (China Market Press, 2020); https://www.las.ac.cn/front/book/detail?id=d0a48fa2a4197bd4957181b53ddbd6bf Download references AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * Key

Laboratory of the Three Gorges Reservoir Region’s Eco-Environment, Ministry of Education, Chongqing University, Chongqing, China Yi Gong & Yi Yang Authors * Yi Gong View author

publications You can also search for this author inPubMed Google Scholar * Yi Yang View author publications You can also search for this author inPubMed Google Scholar CONTRIBUTIONS Y.G. and

Y.Y. designed the research, Y.G. conducted the analysis and wrote the first draft, and Y.Y. contributed to writing and editing. CORRESPONDING AUTHOR Correspondence to Yi Yang. ETHICS

DECLARATIONS COMPETING INTERESTS The authors declare no competing interests. PEER REVIEW PEER REVIEW INFORMATION _Nature Food_ thanks Marica Areniello, Ling Zhang and the other, anonymous,

reviewer(s) for their contribution to the peer review of this work. ADDITIONAL INFORMATION PUBLISHER’S NOTE Springer Nature remains neutral with regard to jurisdictional claims in published

maps and institutional affiliations. RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Gong, Y., Yang, Y. Estimating low-opportunity-cost feed. _Nat Food_

6, 134–136 (2025). https://doi.org/10.1038/s43016-025-01116-z Download citation * Received: 14 November 2023 * Accepted: 13 January 2025 * Published: 10 February 2025 * Issue Date: February

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