Omega-3 Fatty Acids May Help Prevent Transition to Psychosis

Justin Karter
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“When people with early-stage symptoms took omega-3 supplements for three months, they had much lower rates of progression than those who did not,” according to research out of Australia covered in this month’s issue of the New Scientist

Omega-3 fatty acids are an essential component of brain tissue and are necessary for brain development and function.  It has been hypothesized that deficiencies in cell membrane fatty acids may be present in people diagnosed with schizophrenia.  As a result, several studies have attempted to assess the effects of polyunsaturated fatty acids on people with schizophrenia.

In studies comparing the effects of different types of omega- 3 fatty acids against placebo, in people currently taking antipsychotic medications, the results have been mixed.  But a small number of studies testing omega-3 fatty acids as a first line treatment for emerging schizophrenia have shown more promise.

Seven years ago a group of researchers from the University of Melbourne in Australia set out to study whether young people, aged 13-25, experiencing early symptoms associated with schizophrenia, would benefit from a three-month course of omega-3 fish oil pills.  Those in the group of 41 young people who had been given the fish oil treatment were less likely to have developed schizophrenia than those given a placebo.  This month the researchers have published the results of their follow-up study in Nature Communications.

In a randomized, double-blind, placebo-controlled trial, Paul Amminger and his team assessed the effects of the short three-month omega-3 intervention on the initial subjects about 6 and half years later.  For those is the group receiving the placebo the rate of transition to psychosis was 40%, which is consistent with other studies.  Of those given the three-month omega-3 intervention, however, the majority “did not show severe functional impairment, were employed full-time, and no longer experienced attenuated psychotic symptoms at follow-up.”

The omega-3 intervention appears to have decreased the likelihood of being prescribed an antipsychotic as well.  At the six and half year follow-up, 54% of those in the placebo group reported having been prescribed antipsychotic medication compared to only 29% of those in the omega-3 group. For an illustrated overview of the study and results see the graph below.

Amminger et al., conclude that the brief omega-3 treatment had “reduced both the risk of progression to psychotic disorder and psychiatric morbidity in general.” They also suggest that omega-3 fatty acids “may offer a viable longer-term prevention strategy with minimal associated risk in young people at ultrahigh risk of psychosis.”

The prospect of a more tolerable alternative to antipsychotics for those exhibiting early symptoms of psychosis is promising. While more studies need to be done, Amminger told the New Scientist that “the best approach for those at risk of developing schizophrenia would probably be to combine fish oil supplements with talking therapies.”

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Amminger, G. P., Schäfer, M. R., Schlögelhofer, M., Klier, C. M., & McGorry, P. D. (2015). The longer-term outcome in the prevention of psychotic disorders by the Vienna omega-3 study. Nature Communications6. (Full Text)

 

http://www.nature.com/ncomms/2015/150811/ncomms8934/full/ncomms8934.html
http://www.nature.com/ncomms/2015/150811/ncomms8934/full/ncomms8934.html

 

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Justin Karter
MIA Research News Editor: Justin Karter is a writer, researcher and community organizer with graduate degrees in both journalism and community psychology. He is a doctoral candidate in Counseling Psychology at UMass Boston, an active member of the Society for Humanistic Psychology, and is currently working on several scholarly projects at the intersection of psychology, social theory, and political philosophy.

1 COMMENT

  1. It’d be wonderful to see an end to massively tranquilizing people merely because a psychiatrist claims someone is “psychotic,” while completely dismissing as relevant to reality all the person’s real life concerns.

    Fish oil and talk therapy won’t be profitable for the psycho / pharmacutical industries, however.

    But one can hope for an end to today’s psychiatric industry’s massive tranquilization of our society with their brain damaging “antipsychotics.” A drug class, by the way, known to actually cause both the negative and positive symptoms of schizophrenia via both neuroleptic induced deficit syndrome and neuroleptic / antidepressant / benzo induced anticholinergic toxidrome.

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