Omega-3 may block psychosis years later

neuroscience33 Schizophrenia is characterised by delusions and hallucinations, including hearing voices and seeing things that do not really exist.

It typically emerges during adolescence or early adulthood, either abruptly or gradually. There is no cure. Current treatment focuses on managing symptoms.

Scientists have long known that patients with schizophrenia exhibit reduced levels of polyunsaturated fatty acid—specifically, omega-3 and omega 6—in cell membranes.
According to a study in Nature Communications,  Omega-3, a fatty acid found in oily fish, may prevent the onset of schizophrenia and other psychotic disorders long after being consumed. 
Up to seven years after taking omega-3 supplements for 12 weeks, young people at "ultra-high" risk were less likely to have suffered the debilitating condition than a control group given a placebo, reported the study. Only 10 percent of the omega-3 group developed psychosis compared to 40 percent in the placebo group.

But the researchers stopped short of recommending that all at-risk individuals start taking the fatty acid, available as a non-prescription supplement and in many foods, including salmon, sardines and walnuts.

Scientists still do not understand the underlying mechanism by which omega-3 might prevent the onset of schizophrenia, which has both genetic and environmental origins.

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