WODC, Ministry of Justice, The Hague, The Netherlands.
Aggress Behav. 2010 Mar-Apr;36(2):117-26. doi: 10.1002/ab.20335.
In an earlier study, improvement of dietary status with food supplements led to a reduction in antisocial behavior among prisoners. Based on these earlier findings, a study of the effects of food supplements on aggression, rule-breaking, and psychopathology was conducted among young Dutch prisoners. Two hundred and twenty-one young adult prisoners (mean age=21.0, range 18-25 years) received nutritional supplements containing vitamins, minerals, and essential fatty acids or placebos, over a period of 1-3 months. As in the earlier (British) study, reported incidents were significantly reduced (P=.017, one-tailed) in the active condition (n=115), as compared with placebo (n=106). Other assessments, however, revealed no significant reductions in aggressiveness or psychiatric symptoms. As the incidents reported concerned aggressive and rule-breaking behavior as observed by the prison staff, the results are considered to be promising. However, as no significant improvements were found in a number of other (self-reported) outcome measures, the results should be interpreted with caution.
在早期的一项研究中，通过食物补充剂改善饮食状况导致囚犯的反社会行为减少。基于这些早期发现，在荷兰年轻囚犯中进行了一项关于食物补充剂对攻击行为、违反规则和精神病理学影响的研究。221 名年轻成年囚犯（平均年龄=21.0，范围 18-25 岁）接受了含有维生素、矿物质和必需脂肪酸的营养补充剂或安慰剂，持续 1-3 个月。与安慰剂组（n=106）相比，在积极组（n=115）中，报告的事件明显减少（P=.017，单侧）（如早期（英国）研究所述）。然而，其他评估显示，攻击性行为或精神症状没有明显减轻。由于报告的事件涉及监狱工作人员观察到的攻击和违反规则行为，因此结果被认为是有希望的。然而，由于在一些其他（自我报告的）结果测量中没有发现显著的改善，因此结果应谨慎解释。
