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@ARTICLE{Selinger:148762,
author = {E. Selinger and T. Kühn$^*$ and M. Procházková and M.
Anděl and J. Gojda},
title = {{V}itamin {B}12 {D}eficiency {I}s {P}revalent {A}mong
{C}zech {V}egans {W}ho {D}o {N}ot {U}se {V}itamin {B}12
{S}upplements.},
journal = {Nutrients},
volume = {11},
number = {12},
issn = {2072-6643},
address = {Basel},
publisher = {MDPI},
reportid = {DKFZ-2019-03275},
pages = {3019},
year = {2019},
abstract = {As not much is known about the prevalence and predictors of
nutritional deficiencies among vegans in the Czech Republic,
we evaluated whether supplement use and duration of
adherence to the vegan diet are associated with the risk of
cobalamin and iron deficiencies. Associations between
self-reported supplementation and duration of vegan diet
with biomarkers of cobalamin (serum cobalamin,
holotranscobalamin, homocysteine, folate) and iron status
(serum ferritin, iron binding capacity, transferrin and
saturation of transferrin) were assessed by cross-sectional
analyses of medical data from a clinical nutrition center.
Data from 151 (72 females) adult vegans (age 18-67 years),
who were free of major chronic diseases and 85 (40 females)
healthy non-vegans (age 21-47 years) were analyzed. Overall,
vegans had significantly lower cobalamin, hemoglobin and
ferritin levels, but higher folate and MCV values compared
to non-vegans. Vegans not using cobalamin supplements were
at higher risk of low plasma cobalamin than regularly
supplementing vegans (OR: 4.41, $95\%$ CI 1.2-16.16 for
cobalamin, OR: 19.18, $95\%$ CI 1.02-359.42 for
holotranscobalamin), whereas no significant differences in
cobalamin status related to duration of the vegan diet were
observed. Regularly supplementing vegans had similar levels
of cobalamin/holotranscobalamin as non-vegans. Despite lower
ferritin and hemoglobin levels, there was no indication of a
higher risk of iron-deficiency among vegans. To conclude
cobalamin deficiency risk depends on supplementation status
and not on the duration of an exclusive vegan diet, which
underlines the need to integrate cobalamin status monitoring
and counselling on supplement use in routine clinical care
in the Czech Republic.},
cin = {C020},
ddc = {610},
cid = {I:(DE-He78)C020-20160331},
pnm = {313 - Cancer risk factors and prevention (POF3-313)},
pid = {G:(DE-HGF)POF3-313},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:31835560},
doi = {10.3390/nu11123019},
url = {https://inrepo02.dkfz.de/record/148762},
}