Dietary intake of vitamin B6 and concentration of vitamin B 6 in blood samples of German vegans

Download statistics - Document (COUNTER):

Waldmann, A.; Dörr, B.; Koschizke, J.W.; Leitzmann, C.; Hahn, A.: Dietary intake of vitamin B6 and concentration of vitamin B 6 in blood samples of German vegans. In: Public Health Nutrition 9 (2006), Nr. 6, S. 779-784. DOI: https://doi.org/10.1079/PHN2005895

Repository version

To cite the version in the repository, please use this identifier: https://doi.org/10.15488/2672

Selected time period:

year: 
month: 

Sum total of downloads: 205




Thumbnail
Abstract: 
Objective: The study aimed to evaluate the dietary vitamin B6 intake and determine the vitamin B6 concentration in blood samples of German vegans. Design and setting: Cross-sectional study with 33 examination sites all over Germany. Subjects: Ninety-three vegans (50 females) with a mean (± standard deviation (SD)) age of 43.7 ± 15.7 years who took no vitamin supplements. Methods: Dietary intake was assed using a semi-quantitative food-frequency questionnaire. Erythrocyte aspartate aminotransferase activity coefficient (EAST-AC) was calculated as the ratio of stimulated (pyridoxal 5′-phosphate added) to unstimulated activity in blood samples that were provided after an overnight fast. Results: Mean ± SD vitamin B 6 intake was 2.83 ± 0.98 mg day-1 and mean ± SD protein intake was 56.6 ± 21.7 g day-1. Of the participants 4% showed vitamin B6 intakes lower than daily recommended intakes for Germany, 16% showed EAST-AC > 1.85, and a further 58% showed EAST-AC of 1.5-1-85. Moderate vegans were affected to a lesser extent than strict vegans. None of the established confounders was a significant predictor of EAST-AC. In logistic regression analyses the contribution of nutriments and cereals to pyridoxine intake was the only predictor of EAST-AC classified as ≤ 1.85 and > 1.85, respectively. Conclusions: In spite of the high total intake of vitamin B6, an adequate concentration in blood samples could not be realised for a majority of the participants. Due to the health implications of a marginal pyridoxine status, vegans should be encouraged to include foods with a high bioavailability of pyridoxine, such as beans, lentils and bananas, in the daily diet.
License of this version: Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. Dieser Beitrag ist aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2006
Appears in Collections:Naturwissenschaftliche Fakultät

distribution of downloads over the selected time period:

downloads by country:

pos. country downloads
total perc.
1 image of flag of Germany Germany 130 63.41%
2 image of flag of United States United States 35 17.07%
3 image of flag of No geo information available No geo information available 5 2.44%
4 image of flag of China China 5 2.44%
5 image of flag of Indonesia Indonesia 3 1.46%
6 image of flag of Switzerland Switzerland 3 1.46%
7 image of flag of United Kingdom United Kingdom 2 0.98%
8 image of flag of Canada Canada 2 0.98%
9 image of flag of Australia Australia 2 0.98%
10 image of flag of Austria Austria 2 0.98%
    other countries 16 7.80%

Further download figures and rankings:


Hinweis

Zur Erhebung der Downloadstatistiken kommen entsprechend dem „COUNTER Code of Practice for e-Resources“ international anerkannte Regeln und Normen zur Anwendung. COUNTER ist eine internationale Non-Profit-Organisation, in der Bibliotheksverbände, Datenbankanbieter und Verlage gemeinsam an Standards zur Erhebung, Speicherung und Verarbeitung von Nutzungsdaten elektronischer Ressourcen arbeiten, welche so Objektivität und Vergleichbarkeit gewährleisten sollen. Es werden hierbei ausschließlich Zugriffe auf die entsprechenden Volltexte ausgewertet, keine Aufrufe der Website an sich.

Search the repository


Browse