Meta-analysis2016

Efficacy of omega-3 highly unsaturated fatty acids in the treatment of depression

Hallahan B, Ryan T, Hibbeln JR, Murray IT, Glynn S, Ramsden CE, SanGiovanni JP, Davis JM

The British journal of psychiatry : the journal of mental science · 136 citations

How it was studied

Design
Meta-analysis (indexed by PubMed)
Studied in
People
Main outcome
Health markers and function

Who paid for it

Funding
Independent funding
Government
National Institutes of Health
Government
Intramural NIH HHS
Grants
National Institutes of Health (Z01 AA000115)

Based on 2 listed funder(s).

Publication

Published
2016-04-22 · Br J Psychiatry · vol. 209 · issue 3 · pp. 192–201
Publisher
Cambridge University Press
Cited
189 citations · more than 100% of similar papers · 18.8× the field average
Impact
Top 10% most cited in its field
References
86 works
Access
Free to read
Research areas
Fatty Acid Research and Health · Tryptophan and brain disorders · Treatment of Major Depression
Keywords
Docosahexaenoic acid, Depression (economics), Placebo, Eicosapentaenoic acid, Internal medicine, Randomized controlled trial, Clinical trial, Meta-analysis, Medicine, Psychiatry, Psychology, Fatty acid, Polyunsaturated fatty acid, Alternative medicine, Biology
MeSH
humans, fatty acids, omega-3, docosahexaenoic acids, eicosapentaenoic acid, major depressive disorder

8 authors

From IE, US

  • Brian P. Hallahan · correspondingOllscoil na Gaillimhe – University of Galway; University of Illinois Chicago; National Institute on Alcohol Abuse and Alcoholism
  • Timothy J. RyanUniversity of Illinois Chicago; National Institute on Alcohol Abuse and Alcoholism
  • Joseph R. HibbelnNational Institutes of Health; University of Illinois Chicago; National Institute on Alcohol Abuse and Alcoholism
  • Ivan T. MurrayUniversity Hospital Galway; University of Illinois Chicago; National Institute on Alcohol Abuse and Alcoholism
  • Shauna GlynnUniversity of Illinois Chicago; National Institute on Alcohol Abuse and Alcoholism
  • Christopher E. RamsdenNational Institutes of Health; University of Illinois Chicago; National Institute on Alcohol Abuse and Alcoholism

Abstract

Background

Trials evaluating efficacy of omega-3 highly unsaturated fatty acids (HUFAs) in major depressive disorder report discrepant findings.

Aims

To establish the reasons underlying inconsistent findings among randomised controlled trials (RCTs) of omega-3 HUFAs for depression and to assess implications for further trials.

Method

A systematic bibliographic search of double-blind RCTs was conducted between January 1980 and July 2014 and an exploratory hypothesis-testing meta-analysis performed in 35 RCTs including 6665 participants receiving omega-3 HUFAs and 4373 participants receiving placebo.

Results

Among participants with diagnosed depression, eicosapentaenoic acid (EPA)-predominant formulations (>50% EPA) demonstrated clinical benefits compared with placebo (Hedge's G = 0.61, P50% DHA) did not. EPA failed to prevent depressive symptoms among populations not diagnosed for depression.

Conclusions

Further RCTs should be conducted on study populations with diagnosed or clinically significant depression of adequate duration using EPA-predominant omega-3 HUFA formulations.

Abstract via Europe PMC. Copyright remains with the authors or publisher.

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