If everyone in the world followed the USDA-recommended diet, there wouldn’t be enough agricultural land to grow all the food, a new study has found.
The researchers from the University of Guelph and the University of Waterloo, both in Ontario, said an additional gigahectare of fertile land — roughly the size of Canada — would be required to feed everyone, highlighting the fact that dietary guidelines should be based on more than just nutrition.
The study, funded by a Canadian government grant through the Natural Sciences and Engineering Research Council, sought to address the issue of sustainability in the global diet.
The researchers drew from current yield data (production, imports and exports by nation) for various crops from the Food and Agriculture Organization of the
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