Reading , working memory , and behavior change scores showed no consistent differences between intervention and placebo group .
Some behavioral subscales showed minor group differences .
Conclusions This RCT did not replicate results of the earlier DOLAB 1 study on the effectiveness of nutritional supplementation with DHA for learning and behavior .
Background Omega-3 fatty acids are central to brain-development of children .
Evidence from clinical trials and systematic review s demonstrates the potential of long-chain Omega-3 supplementation for learning and behavior .
However , findings are inconclusive and in need of robust replication studies since such work is lacking .
Objectives Replication of the 2012 DOLAB 1 study findings that a dietary supplementation with the long-chain omega-3 docosahexaenoic acid ( DHA ) had beneficial effects on the reading , working memory , and behavior of healthy schoolchildren .
A double-blind placebo-controlled randomised trial of omega-3 supplementation in children with moderate ADHD symptoms
Objective Clinical trials and inconclusive meta-analyses have investigated the effects of omega-3 supplements in children with Attention-Deficit Hyperactivity Disorder ( ADHD ) . We performed a r and omised placebo-controlled trial to evaluate the efficacy of omega-3 fatty acids . Methods Children aged 6–15 years with established diagnosis of ADHD were r and omised 1:1 to receive either supplements containing docosahexaenoic acid ( DHA ) and eicosapentaenoic acid ( EPA ) or a placebo for 3 months . Psychotropic or omega-3-containing treatments were not authorised during the study . The primary outcome was the change in the Attention-Deficit Hyperactivity Disorder Rating Scale version 4 ( ADHD-RS-IV ) . Other outcomes included safety , lexical level ( Alouette test ) , attention ( Test of Attentional Performance for Children — KiTAP ) , anxiety ( 48-item Conners Parent Rating Scale-Revised — CPRS-R ) , and depression ( Children ’s Depression Inventory — CDI ) . Results Between 2009 and 2011 , 162 children were included in five French child psychiatry centres . The mean age was 9.90 ( SD 2.62 ) years and 78.4 % were boys . The inclusion ADHD-RS-IV at was 37.31 ( SD 8.40 ) . The total ADHD-RS-IV score reduction was greater in the placebo group than in the DHA – EPA group : −19 ( −26 , −12 ) % and −9.7 ( −16.6 , −2.9 ) % , respectively , p = 0.039 . The other components of the Conners score had a similar variation but the differences between groups were not significant . Two patients in the DHA – EPA group and none in the placebo group experienced a severe adverse event ( hospitalisation for worsening ADHD symptoms ) . Conclusion This study did not show any beneficial effect of omega-3 supplement in children with mild ADHD symptoms
Reading , working memory , and behavior change scores showed no consistent differences between intervention and placebo group .
Some behavioral subscales showed minor group differences .
Conclusions This RCT did not replicate results of the earlier DOLAB 1 study on the effectiveness of nutritional supplementation with DHA for learning and behavior .
Background Omega-3 fatty acids are central to brain-development of children .
Evidence from clinical trials and systematic review s demonstrates the potential of long-chain Omega-3 supplementation for learning and behavior .
However , findings are inconclusive and in need of robust replication studies since such work is lacking .
Objectives Replication of the 2012 DOLAB 1 study findings that a dietary supplementation with the long-chain omega-3 docosahexaenoic acid ( DHA ) had beneficial effects on the reading , working memory , and behavior of healthy schoolchildren .