Food and Behaviour Research

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Omega-3 benefits may be sustained in early psychosis

Eleanor McDermid

The positive effects of omega-3 supplementation seen in patients at high risk of psychosis in a previous randomised, controlled trial may be sustained, the investigators reported at the International Early Psychosis Conference in Tokyo, Japan.

FAB RESEARCH COMMENT:

This study reports on the long-term follow-up (after almost 7 years) of participants in a pioneering randomised controlled treatment trial of dietary supplementation with the long-chain omega-3 from fish oils (EPA and DHA) for the prevention of psychosis.

Results of the original study involving these young people - all of whom were originally judged to be at very high risk for developing full psychosis - showed striking reductions in the rate of transition to psychosis at 12-month follow-up for those who received omega-3 supplementation for just 3 months, compared with placebo treatment. 

For details of the original study, see:


For details of this follow-up report, see:

When followed up a median of 6.7 years after the original intervention, just four (9.8%) of 41 patients in the omega-3 group had transitioned to psychosis, compared with 16 (40.0%) of 40 patients given placebo.

However, lead researcher G Paul Amminger (University of Melbourne, Victoria, Australia) cautioned that “it will not be possible to make recommendations on the efficacy of omega-3 preventing transition to psychosis until the results have been confirmed in two replication trials.”