Journal
BRITISH JOURNAL OF NUTRITION
Volume 104, Issue 8, Pages 1096-1100Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0007114510001947
Keywords
Mercury; Seafood consumption; Prenatal exposure; Fetal growth
Categories
Funding
- Fondation pour la Recherche Medicale (FRM)
- French Ministry of Research: IFR programme
- INSERM Nutrition Research Programme
- French Ministry of Health Perinatality Programme
- French Agency for Environment Security (AFFSET)
- French National Institute for Population Health Surveillance (INVS)
- Paris-Sud University
- French National Institute for Health Education (INPES)
- Nestle
- Mutuelle Generale de l'Education Nationale (MGEN)
- French speaking association for the study of diabetes and metabolism (Alfediam)
- National Agency for Research (ANR)
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Maternal seafood intake is of great health interest since it constitutes an important source of n-3 fatty acids, but provides also an important pathway for fetal exposure to Hg. The objective of the present study was to determine associations between Hg contamination and both maternal seafood consumption and fetal growth in French pregnant women. Pregnant women included in the 'EDEN mother-child' cohort study answered FFQ on their usual diet in the year before and during the last 3 months of pregnancy, from which frequencies of seafood intake were evaluated. Total hair-Hg level was determined for the first 691 included women. Associations between Hg level, seafood intake and several neonatal measurements were studied using linear regressions adjusted for confounding variables. The median Hg level for mothers was 0.52 mu g/g. Maternal seafood intake was associated with Hg level (r 0.33; P<0.0001). There was no association between Hg level and fetal growth in the whole sample of women, except for an early negative relationship with biparietal diameter. A positive association was found between seafood intake and fetal growth in overweight women only which remained unchanged after adjustment for Hg level (birth weight: +101 g for a difference of 1 SD in seafood consumption; P=0.008). Although seafood intake was associated with Hg contamination in French pregnant women, the contamination level was low. There was no consistent association between Hg level and fetal growth. Taking into account Hg level did not modify associations between seafood intake and fetal growth.
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