Study Type



Timing of Exposure

Voigt et al., 2001*

Randomized Controlled Trial

Boys and girls (n=63)

Aged 6-12 years

100% White in DHA group; 85% White in placebo group


No ineffective treatment with stimulant medication; treatment with other psychotropic medications; previous diagnosis of other childhood psychiatric disorders; use of dietary supplements; occurrence of a significant life event within 6 months; history of head injury or seizures; receipt of special education services for mental retardation or a pervasive developmental disorder; premature birth; exposure to tobacco, alcohol, or other drugs in utero; diagnosis of a disorder of lipid metabolism or other chronic medical condition

Previous diagnosis of ADHD

Being treated successfully with stimulant medication

Algae-derived triglyceride supplement

4 months

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