International food trade benefits biodiversity and food security in low-income countries.

To achieve the United Nations Sustainable Development Goals related to food security and biodiversity, understanding their interrelationships is essential. By examining datasets comprising 189 food items across 157 countries during 2000-2018, we found that high-income countries exported more food to low-income countries than they imported. Many low-income countries, especially those with biodiversity hotspots, increasingly acted as net importers, suggesting that imports from high-income countries can benefit biodiversity in low-income countries. Because low-income countries without hotspots have rapidly raised their amounts of food exports to hotspot countries, such exports might help further reduce negative impacts on biodiversity. The increasing complexity of food trade among countries with and without biodiversity hotspots requires innovative approaches to minimize the negative impacts of global food production and trade on biodiversity in countries worldwide.