Hanley-Cook Giles T, Deygers Jill, Daly Aisling J, Berden Jeroen, Remans Roseline, Termote Celine, Ibsen Daniel B, Baudry Julia, Van Damme Patrick, Kesse-Guyot Emmanuelle, Vineis Paolo, Schulze Matthias B, Hoang Ky The, Deschasaux-Tanguy Mélanie, Heath Alicia, Dahm Christina C, van der Schouw Yvonne T, Skeie Guri, Guevara Marcela, Milani Lorenzo, Penafiel Daniela, Raneri Jessica E, Oduor Francis Odhiambo, Hunter Danny, Ratnasekera Disna, Murray Kris A, Touvier Mathilde, Huybrechts Inge, Lachat Carl
Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium.
Department of Data Analysis and Mathematical Modelling, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium.
Nat Food. 2025 Mar 24. doi: 10.1038/s43016-025-01147-6.
Ecological diversity indices such as Hill numbers have been developed to estimate effective species numbers, yet the ability of Hill numbers to compare food biodiversity across contexts is unclear. Here we computed the between- and within-country variability of similarity-insensitive Hill numbers using dietary intake collected from prospective cohorts in nine European countries and cross-sectional studies in five low- and middle-income countries. We also assessed the relationships between more biodiverse diets, mortality rates and micronutrient adequacy. Only Hill, better known as dietary species richness (DSR), showed strong heterogeneity between countries and individuals within countries. Higher DSR was most strongly associated with lower mortality rates in Europe as compared to Hill, Hill and Hill, whereas relationships with micronutrient adequacy were comparable across Hill numbers in the global south. DSR can be used to assess progress towards more biodiverse diets, while also serving as a marker for the deleterious nutrition and health impacts associated with non-diverse diets.
诸如希尔数之类的生态多样性指数已被开发出来用于估计有效物种数量，但希尔数在不同背景下比较食物生物多样性的能力尚不清楚。在这里，我们利用从九个欧洲国家的前瞻性队列以及五个低收入和中等收入国家的横断面研究中收集的饮食摄入量，计算了相似性不敏感希尔数在国家之间和国家内部的变异性。我们还评估了更多样化饮食、死亡率和微量营养素充足率之间的关系。只有希尔数（更广为人知的饮食物种丰富度，即DSR）在国家之间以及国家内部的个体之间表现出强烈的异质性。与其他希尔数相比，在欧洲，较高的DSR与较低的死亡率最为密切相关，而在全球南方，与微量营养素充足率的关系在各个希尔数之间是可比的。DSR可用于评估在实现更多样化饮食方面的进展，同时也可作为与单一饮食相关的有害营养和健康影响的一个指标。
