Dietary species richness as a measure of food biodiversity and nutritional quality of diets

Vista sencilla de ítem
dc.creatorLachat, Carl
dc.creatorRaneri, Jessica Evelyn
dc.creatorWalker Smith, K.
dc.creatorKolsteren, P.
dc.creatorDamm, P. van
dc.creatorVerzelen, K.
dc.creatorPenafiel, Daniela
dc.creatorVanhove, W.
dc.creatorKennedy, G.
dc.creatorHunter, D.
dc.creatorOduor Odhiambo, F.
dc.creatorNtandou-Bouzitou, Gervais D.
dc.creatorBaets, B. de
dc.creatorRatnasekera, D.
dc.creatorThe Ky, H.
dc.creatorRemans, R.
dc.creatorTermote, Céline
dc.date2018-01-02
dc.date2017-12-31T10:04:18Z
dc.date2017-12-31T10:04:18Z
dc.date.accessioned2026-06-27T13:49:17Z
dc.descriptionBiodiversity is key for human and environmental health. Available dietary and ecological indicators are not designed to assess the intricate relationship between food biodiversity and diet quality. We applied biodiversity indicators to dietary intake data from and assessed associations with diet quality of women and young children. Data from 24-hour diet recalls (55% in the wet season) of n = 6,226 participants (34% women) in rural areas from seven low- and middle-income countries were analyzed. Mean adequacies of vitamin A, vitamin C, folate, calcium, iron, and zinc and diet diversity score (DDS) were used to assess diet quality. Associations of biodiversity indicators with nutrient adequacy were quantified using multilevel models, receiver operating characteristic curves, and test sensitivity and specificity. A total of 234 different species were consumed, of which <30% were consumed in more than one country. Nine species were consumed in all countries and provided, on average, 61% of total energy intake and a significant contribution of micronutrients in the wet season. Compared with Simpson’s index of diversity and functional diversity, species richness (SR) showed stronger associations and better diagnostic properties with micronutrient adequacy. For every additional species consumed, dietary nutrient adequacy increased by 0.03 (P < 0.001). Diets with higher nutrient adequacy were mostly obtained when both SR and DDS were maximal. Adding SR to the minimum cutoff for minimum diet diversity improved the ability to detect diets with higher micronutrient adequacy in women but not in children. Dietary SR is recommended as the most appropriate measure of food biodiversity in diets.
dc.formatapplication/pdf
dc.identifierhttps://hdl.handle.net/10568/89861
dc.identifier.urihttp://hdl.handle.net/123456789/66793
dc.languageen
dc.publisherNational Academy of Sciences
dc.rightsOpen Access
dc.sourceLachat, C.; Raneri, J.E.; Walker Smith, K.; Kolsteren, P.; van Damm, P.; Verzelen, K.; Penafiel, D.; Vanhove, W.; Kennedy, G.; Hunter, D.; Oduor Odhiambo, F.; Ntandou-Bouzitou, G.; De Baets, B.; Ratnasekera, D.; The Ky, H.; Remans, R.; Termote, C. (2017) Dietary species richness as a measure of food biodiversity and nutritional quality of diets. Proceedings of the National Academy of Science. Online first paper (18DEC17) ISSN:0027-8424
dc.subjecthuman nutrition
dc.subjectdiet
dc.subjectdiversification
dc.subjecthousehold consumption
dc.subjectfoods
dc.subjectbiodiversity
dc.titleDietary species richness as a measure of food biodiversity and nutritional quality of diets
dc.typeJournal Article

Archivos

Colecciones

Bioversity International