Document Detail

Effect of n-3 long-chain polyunsaturated fatty acid supplementation of women with low-risk pregnancies on pregnancy outcomes and growth measures at birth: a meta-analysis of randomized controlled trials.
MedLine Citation:
PMID:  16762945     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: It is hypothesized that the intake of long-chain polyunsaturated fatty acids (LC-PUFAs) throughout pregnancy is important to maternal health and fetal and infant development. OBJECTIVE: The objective was to evaluate systematically the effect of LC-PUFA supplementation of pregnant women's diets on pregnancy outcomes and growth measures at birth. DESIGN: We searched MEDLINE, EMBASE, CINAHL, and the Cochrane Library through August 2005 and also searched the references in reviewed articles for randomized controlled trials (RCTs) comparing LC-PUFA supplementation with placebo or no supplementation. RESULTS: Of 6 included RCTs, only 1 was judged to be at low risk of bias. Supplementation with n-3 LC-PUFAs in these 6 RCTs (1278 infants) was associated with a significantly greater length of pregnancy [weighted mean difference (WMD): 1.57 d; 95% CI: 0.35, 2.78 d; findings stable on sensitivity analysis] than in control subjects. We found no evidence that supplementation influenced the percentage of preterm deliveries, the rate of low-birth-weight infants, or the rate of preeclampsia or eclampsia. We found no significant difference in the 6 RCTs (1278 infants) in birth weight (WMD: 54 g; 95% CI: -3.1, 111 g) and no significant difference in 5 RCTs (1262 infants) in birth length (WMD: 0.23 cm; 95% CI: -0.04, 0.5 cm), but, in 4 RCTs (729 infants), there was a significant increase in head circumference (WMD: 0.26 cm; 95% CI: 0.02, 0.49 cm; significance was lost on sensitivity analysis). CONCLUSIONS: n-3 LC-PUFA supplementation during pregnancy may enhance pregnancy duration and head circumference, but the mean effect size is small. The implications of these findings for later growth and development remain to be elucidated.
Hania Szajewska; Andrea Horvath; Berthold Koletzko
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Publication Detail:
Type:  Journal Article; Meta-Analysis; Review    
Journal Detail:
Title:  The American journal of clinical nutrition     Volume:  83     ISSN:  0002-9165     ISO Abbreviation:  Am. J. Clin. Nutr.     Publication Date:  2006 Jun 
Date Detail:
Created Date:  2006-06-09     Completed Date:  2006-07-06     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0376027     Medline TA:  Am J Clin Nutr     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1337-44     Citation Subset:  AIM; IM    
Department of Paediatric Gastroenterology and Nutrition, The Medical University of Warsaw, Warsaw, Poland.
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MeSH Terms
Dietary Supplements
Fatty Acids, Omega-3 / administration & dosage,  pharmacology*
Fetal Development / drug effects*
Infant, Newborn
Pregnancy Outcome*
Randomized Controlled Trials as Topic
Reg. No./Substance:
0/Fatty Acids, Omega-3

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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