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Gestation length and birth weight in relation to intake of marine n-3 fatty acids

Published online by Cambridge University Press:  09 March 2007

Sjúrđur F.Olsen* ,
Harald S. Hansen ,
Niels J. Secher ,
Benny Jensen  and
Brittmarie Sandström
Sjúrđur F.Olsen*
Affiliation:
Institute of Epidemiology and Social Medicine, University of Århus, Hoegh-Guldbergsgade 8, DK-Århus C, Denmark
Harald S. Hansen
Affiliation:
Department of Biological Sciences, Royal Danish School of Pharmacy, Copenhagen, Denmark
Niels J. Secher
Affiliation:
Department of Obstetrics and Gynecology, University Hospital of Århus, Århus, Denmark
Benny Jensen
Affiliation:
Technological Laboratory, Ministry of Fisheries, Technical University, Lyngby, Denmark
Brittmarie Sandström
Affiliation:
Research Department of Human Nutrition, Royal Veterinary and Agricultural University, Copenhagen, Denmark
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Abstract

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It has been hypothesized that marine n-3 fatty acids ingested during pregnancy prolong duration of pregnancy and increase fetal growth rate in humans. By a combined self-administered questionnaire and interview applied in the 30th week of gestation we assessed dietary intake of marine n-3 fatty acids and energy in a population-based sample of 965 pregnant Danish women; in a random 14% subsample we also measured marine n-3 fatty acids relative to arachidonic acid (FA-ratio) in erythrocytes. Mean intake of marine n-3 fatty acids was 0·25 (95% range 0–0·75) g/d. We could detect no association between n-3 fatty acid intake and FA-ratio on the one hand, and gestation length, birth weight and birth length on the other. The analyses were adjusted for maternal height, prepregnant weight, parity and smoking. The conclusion from the study was that within the intake range of this population, marine n-3 fatty acids ingested in the weeks prior to the 30th week of pregnancy seem not to be a predictor of gestation length or fetal growth rate.

Keywords

Birth weightDietary methodsGestation lengthMarine n-3 fatty acids
Type
Effects of fatty acid composition of the diet
Information
British Journal of Nutrition , Volume 73 , Issue 3 , March 1995 , pp. 397 - 404
Copyright
Copyright © The Nutrition Society 1995

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