PDF(Pubmed)
Abstract：
Rising incomes across low-and middle-income countries (LMIC) lead to a lower consumption of starchy staples and create a growing demand for high-quality animal protein, an observation referred to as Bennett\'s law. This dietary shift from plant-sourced to animal-sourced proteins has also been referred to as the LMIC protein transition. At this time, there are rising concerns that current livestock production is highly resource intensive and may not meet the growing global demand for high-quality protein. Alternative plant-based proteins, derived from new technologies and often fortified with micronutrients, are intended to close the LMIC nutrient gap. However, data from LMIC suggest that the income-driven selection of animal proteins is aspirational and varies by stage of economic development. Food balance sheets from higher-income countries indicate that meat consumption peaks only at very high incomes. Will plant-based alternative proteins satisfy the growing LMIC demand for animal-sourced foods, thereby negating Bennett\'s law? Current evidence suggests otherwise.
摘要：
低收入和中等收入国家（LMIC）的收入增加导致淀粉主食的消费减少，对高质量动物蛋白的需求不断增长，被称为贝内特定律的观察。这种从植物来源的蛋白质到动物来源的蛋白质的饮食转变也被称为LMIC蛋白质转变。此时,人们越来越担心当前的畜牧业生产是高度资源密集型的，可能无法满足全球对高质量蛋白质日益增长的需求。替代植物蛋白，源自新技术，通常用微量营养素强化，旨在缩小LMIC的营养差距。然而,LMIC的数据表明，以收入为导向的动物蛋白质选择是理想的，并且因经济发展阶段而异。来自高收入国家的食品资产负债表表明，肉类消费只有在非常高的收入时才达到峰值。基于植物的替代蛋白质是否会满足LMIC对动物食品日益增长的需求，从而否定了贝内特的定律？目前的证据表明并非如此。
