联合国五家机构近日联合发布《2026年世界粮食安全和营养状况》报告，揭示了全球营养获取的严峻不平等现象。[1]
报告指出，全球约有26.9亿人无法负担得起符合能量和营养需求的多样化健康饮食。[1]这一困境的根本原因在于健康饮食的成本过高——日均成本为4.28购买力平价美元，远超极端贫困线的3美元标准。[1]
尽管全球饥饿形势显现缓解迹象，2025年全球饥饿人口比例为7.8%，较2024年的8.1%实现连续第三年下降，但饮食负担能力不足仍在加剧相关健康风险。[1]数据显示，成人肥胖率在短短十余年间大幅攀升，从2012年的12.1%上升至2024年的16.2%。[1]
区域差异悬殊。非洲地区面临最为严峻的挑战，其中66.6%的人口无法负担健康饮食，饥饿人口约3.09亿。[1]这一数字的增长具有历史意义——非洲饥荒人口总数首次超越亚洲。[1]
A comprehensive assessment released by five United Nations agencies reveals that 2.69 billion people globally cannot afford a nutritious, diverse diet that meets their energy and nutritional requirements [1]. The 2026 State of Food Security and Nutrition in the World report, produced by the UN Food and Agriculture Organization, World Health Organization, UNICEF, World Food Programme, and International Fund for Agricultural Development, underscores a persistent disconnect between food availability and economic accessibility [1].
The cost of a healthy diet averages $4.28 per person daily in purchasing power parity terms, significantly exceeding the $3 extreme poverty line [1]. This affordability crisis persists even as global hunger rates show modest improvement, with the proportion of hungry people declining to 7.8 percent in 2025 from 8.1 percent in 2024—marking the third consecutive year of decline [1].
The economic barriers to nutritious eating carry wider health consequences. Adult obesity rates have climbed from 12.1 percent in 2012 to 16.2 percent in 2024, reflecting the tendency of low-income populations to rely on cheaper, calorie-dense but nutrient-poor foods [1].
Regional disparities remain stark. Africa faces the most severe challenge, with 66.6 percent of its population unable to afford a healthy diet [1]. The continent's hungry population reached approximately 309 million people, surpassing Asia for the first time as the region with the largest number of food-insecure inhabitants [1].