Study author G. Paul Amminger, a senior research fellow at the University of Melbourne, and colleagues evaluated the effects of omega-3s in fish oil with a group of young people ages 13 to 25 who were at risk of developing psychosis. In an earlier study, the investigators gave the fats a 12-week trial in this group and followed the young people for a year. For that study, the results were promising: 5% of the omega-3 group went on to develop a psychotic disorder whereas 27.5% did so in the placebo group.
In their current study, Amminger and colleagues have now followed these patients for a median of seven years. Of the participants in the initial 12-week intervention, 41 got the omega-3s (1.2 g of omega-3 polyunsaturated fatty acids/day) and 40 received placebo. And now, many years later, the differences were almost stunning: only 10% of the people who received the fish oil later went on to a schizophrenia or related diagnosis whereas 40% did so in the placebo group.
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