dc.contributor.author | Henjum, Sigrun | |
dc.contributor.author | Groufh-Jacobsen, Synne | |
dc.contributor.author | H. Allen, Lindsay | |
dc.contributor.author | Raael, Ellen | |
dc.contributor.author | Israelsson, Anna Maria | |
dc.contributor.author | Shahab-Ferdows, Setareh | |
dc.contributor.author | Hampel, Daniela | |
dc.date.accessioned | 2023-04-25T11:08:54Z | |
dc.date.available | 2023-04-25T11:08:54Z | |
dc.date.created | 2022-10-25T21:13:48Z | |
dc.date.issued | 2022 | |
dc.identifier.citation | Henjum, S, Groufh-Jacobsen, S., H. Allen, L., Raael, E., Israelsson, A. M., Shahab-Ferdows, S. & Hampel, D. (2022). Adequate vitamin B12 and folate status of Norwegian vegans and vegetarians. British Journal of Nutrition, 1-8. | en_US |
dc.identifier.issn | 1475-2662 | |
dc.identifier.uri | https://hdl.handle.net/11250/3064896 | |
dc.description.abstract | Plant-based diets may increase the risk of vitamin B12 deficiency due to limited intake of animal-source foods, while dietary folate increases when adhering to plant-based diets. In this cross-sectional study, we evaluated the B12 and folate status of Norwegian vegans and vegetarians using dietary B12 intake, B12- and folic acid supplement use, and biomarkers (serum B12 [B12], plasma total-homocysteine [tHcy], plasma-methylmalonic acid [MMA], and serum-folate). Vegans (n=115) and vegetarians (n=90) completed a 24-hour dietary recall and a food-frequency questionnaire and provided a non-fasting blood sample. cB12, a combined indicator for evaluation of B12 status, was calculated. B12 status were adequate in both vegans and vegetarians according to the cB12 indicator, however 4% had elevated B12. Serum B12, tHcy, MMA concentrations and the cB12 indicator (overall median: 357pmol/L, 9.0µmol/L, 0.18µmol/L, 1.30 (cB12)) did not differ between vegans and vegetarians, unlike for folate (vegans: 25.8nmol/L, vegetarians: 21.6nmol/L, p=0.027). Serum B12 concentration <221pmol/L, was found in 14% of all participants. Vegetarians revealed the highest proportion of participants below the RDI of 2 µg/day including supplements (40 vs. 18%, p<0.001). Predictors of higher serum B12 concentrations were average daily supplement use and older age. Folate deficiency (<10 nmol/L) was uncommon overall (<2.5%). The combined indicator cB12 suggested that none of the participants was B12 depleted, however low serum B12 concentration was found in 14% of the participants. Folate concentrations were adequate, indicating adequate folate intake in Norwegian vegans and vegetarians. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Cambridge University Press on behalf of The Nutrition Society | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Adequate vitamin B12 and folate status of Norwegian vegans and vegetarians | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | © 2022 The Author(s) | en_US |
dc.subject.nsi | VDP::Medisinske Fag: 700::Helsefag: 800::Ernæring: 811 | en_US |
dc.source.pagenumber | 1-8 | en_US |
dc.source.journal | British Journal of Nutrition | en_US |
dc.identifier.doi | https://doi.org/10.1017/S0007114522002987 | |
dc.identifier.cristin | 2065029 | |
dc.relation.project | Universitetet i Agder: 689019 | en_US |
dc.description.localcode | Paid open access | en_US |
cristin.qualitycode | 2 | |