(11-05-13) Low fish intake is associated with low blood concentrations of vitamin D, choline and n-3 DHA in pregnant women.

Wu BT, Dyer RA, King DJ, Innis SM.
Source
Department of Paediatrics, Faculty of Medicine, Nutrition and Metabolism
Program, Child and Family Research Institute, BC, Canada V5Z 4H4.
Abstract
Several studies have investigated the potential health benefits, including
those associated with neurological function, of the n-3 fatty acid DHA. This
has arisen in part because of the association between higher intakes of fish,
which is a major dietary source of DHA, and reduced disease risk. In addition
to DHA, fish also provides choline and vitamin D. The objective of the present
study was to assess whether women in the first half of pregnancy with low fish
intake also had low blood concentrations of vitamin D, choline and DHA. A total
of 222 pregnant women at 16 weeks of gestation were examined for dietary
intake, erythrocyte (phosphatidylethanolamine PE) DHA, plasma free choline and
25-hydroxyvitamin D (25(OH)D). Women who consumed ¡Ü 75 g fish/week (n 56)
compared to ¡Ý 150 g fish/week (n 116) had lower dietary intake of DHA, total
choline and vitamin D (P< 0¡¤001), and lower erythrocyte PE DHA (5¡¤25 (sd 1¡¤27),
6¡¤83 (sd 1¡¤62) g/100 g total fatty acid, respectively, P< 0¡¤01), plasma free
choline (6¡¤59 (sd 1¡¤65), 7¡¤40 (sd 2¡¤05) ¦Ìmol/l, respectively, P= 0¡¤023) and 25
(OH)D (50¡¤3 (sd 20¡¤0), 62¡¤5 (sd 29¡¤8) nmol/l, respectively, P< 0¡¤01). DHA
intake was positively related to the intake of vitamin D from foods (¦Ñ 0¡¤47, P<
0¡¤001) and total choline (¦Ñ 0¡¤32, P< 0¡¤001). Dietary intakes and biomarkers of
DHA, choline and vitamin D status were assessed to be linked. This raises the
possibility that unidentified concurrent nutrient inadequacies might have an
impact on the results of studies addressing the benefits of supplemental DHA.

Source: Br J Nutr. 2013 Mar 14;109(5):936-43. doi: 10.1017/S0007114512002103. Epub 2012
Jun 12.

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