Flutterby™! : Violence and supplements

The Guardian: Omega-3, junk food and the link between violence and what we eat:

The results, published in 2002, showed that those receiving the extra nutrients committed 37% fewer serious offences involving violence, and 26% fewer offences overall. Those on the placebos showed no change in their behaviour. Once the trial had finished the number of offences went up by the same amount. The office the researchers had used to administer nutrients was restored to a restraint room after they had left.