Journal
JOURNAL OF ATTENTION DISORDERS
Volume 14, Issue 3, Pages 232-246Publisher
SAGE PUBLICATIONS INC
DOI: 10.1177/1087054709347250
Keywords
fatty acid; nutrient; supplementation
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Funding
- Unilever Netherlands BV
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Objectives: To review the impact of polyunsaturated fatty acids (PUFA) in reducing ADHD symptoms in children. Methods: Peer-reviewed experimental literature published from 1980 to Mai 2009 is consulted (Psychinfo, Medline, and resulting reference lists). Results: Placebo-controlled studies with ADHD or hyperactive children show no effects on behaviors or cognition when only n-6 (omega-6) PUFA, only docosahexaenoic acid (DHA), or n-6 and n-3 (omega-3) short-chain PUFA are supplemented. Yet three out of four studies suggest that a combination of long-chain n-3 and n-6 fatty acids (DHA, eicosapentaenoic acid [EPA], and gamma-linolenic acid [GLA]) supplemented daily for 3 to 4 months could lead to a reduction in ADHD symptomatology. Results on cognitive outcomes are inconsistent. Conclusions: Evidence is too limited to reach definitive conclusions but suggests that research on the impact of long-chain PUFA (n-3 and n-6) should continue with special focus on individual differences (genetic and fatty acid markers), mechanisms (brain imaging), and new enhanced methods of systematic observations of behaviors.
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