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Omega-3 improves pregnancies – Meta-analysis May 2022


Impact of n-3 polyunsaturated fatty acid intake in pregnancy on maternal health and birth outcomes: systematic review and meta-analysis from randomized controlled trails

Arch Gynecol Obstet. 2022 Mar 28. doi: 10.1007/s00404-022-06533-0 PDF costs $40 read for free on DeepDyve
Mona A Abdelrahman 1, Hasnaa Osama 2, Haitham Saeed 2, Yasmin M Madney 2, Hadeer S Harb 2, Mohamed E A Abdelrahim 2

Background: Maternal omega-3 consumption during pregnancy has been positively linked with a positive impact on maternal health and fetal growth. However, the results of individual studies are inconsistent and conflicting.

Objective: Examine the effect of supplementation with DHA, and/or EPA, and/or ALA throughout pregnancy on offspring's growth and pregnancy outcomes.

Design: A systematic review and meta-analysis.

Population: Pregnant women.

Methods: According to (PRISMA) statement and the Cochrane Handbook guidelines. Human trials (RCT or quasi-RCT) which involved oral omega-3 supplementation at least twice a week during pregnancy were included and comparing it with control groups with no supplementation or placebo administration. Data were extracted and directed using RevMan software. Fifty-nine randomized controlled trials were eligible for inclusion in the meta-analysis. Performed in MEDLINE, PubMed, Scopus, Google Scholar, and the Cochrane Library comparing omega 3 with control groups, from 1990 to 2020.

The main outcome measures: The primary outcome measures were pregnancy-induced hypertension, preeclampsia, gestational duration, preterm birth, early preterm birth, birth weight, low birth weight, neonatal length, and head circumference. The secondary outcomes were neonatal intensive care unit, infant death, prenatal death, and cesarean section.

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Results: In 24 comparisons (21,919 women) n-3 fatty acids played a protective role against the risk of

  • preeclampsia (RR = 0.84, 95% CI 0.74-0.96 p = 0.008; I2 = 24%).

In 46 comparisons (16,254 women) n-3 fatty acids were associated with a significantly

  • greater duration of pregnancy (MD = 1.35, 95% CI 0.65-2.05, p = 0.0002; I2 = 59%).

27 comparisons (15,510 women) was accompanied by a significant decrease in

  • pre-term birth less than 37 weeks (RR = 0.86, 95% CI 0.77-0.95, p = 0.005; I2 = 0%).

12 comparisons (11,774 women) was accompanied by a significant decrease in

  • early pre-term birth less than 34 weeks (RR = 0.77, 95% CI 0.63-0.95, p = 0.01; I2 = 40%).

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38 comparisons (16,505 infants) had a significant

  • increase in birth weight (MD = 49.19, 95% CI 28.47-69.91, p < 0.00001; I2 = 100%).

Finally, 14 comparisons (8,449 infants) had a borderline significance in

  • increase in low birth weight (RR = 0.88, 95% CI 0.78-1.00, p = 0.05; I2 = 28%).

Conclusions: Supplementation with omega-3 in prgnancy can prevent preeclampsia, increase gestational duration, increase birth weight and decrease the risk of low birth weight and preterm birth.

Secondary outcomes

Risk of admission to the neonatal intensive care unit (13 trials)
Incidence of cesarean delivery (29 trials)
Prenatal death (12 trials)
Infant death (10 trials)


VitaminDWiki - Omega-3 helps many health problems

371 Omega-3 items in category Omega-3 helps with: Autism (9 studies), Depression (29 studies), Cardiovascular (31 studies), Cognition (48 studies), Pregnancy (36 studies), Infant (24 studies), Obesity (13 studies), Mortality (5 studies), Breast Cancer (6 studies), Smoking, Sleep, Stroke, Longevity, Trauma (12 studies), Inflammation (18 studies), Multiple Sclerosis (9 studies), VIRUS (12 studies), etc

   See also - Overview: Omega-3 many benefits include helping vitamin D


VitaminDWiki - 36 studies in both categories Pregnancies and Omega-3

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Created by admin. Last Modification: Friday June 10, 2022 23:53:23 GMT-0000 by admin. (Version 6)

Attached files

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17579 Preterm Omega-3.jpg admin 12 May, 2022 19:18 60.21 Kb 42
17578 Omega-3 brth outcome.jpg admin 12 May, 2022 18:44 65.78 Kb 55
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