China’s potato policy, introduced to improve food security, shows that substituting staples with alternative crops, though rarely the focus of dietary advice for planetary health, can also reduce the environmental impacts of food.
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Scherer, L., Huang, J. Overlooked benefits of a staple food transition. Nat Food 2, 557–558 (2021). https://doi.org/10.1038/s43016-021-00324-7
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DOI: https://doi.org/10.1038/s43016-021-00324-7