Association between Blood Omega-3 Index and Cognition in Typically Developing Dutch Adolescents

I.S. van der Wurff, C. von Schacky, K. Berge, Maurice P. Zeegers, P.A. Kirschner, R.H.M. de Groot

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

The impact of omega-3 long-chain polyunsaturated fatty acids (LCPUFAs) on cognition is heavily debated. In the current study, the possible association between omega-3 LCPUFAs in blood and cognitive performance of 266 typically developing adolescents aged 13-15 years is investigated. Baseline data from Food2Learn, a double-blind and randomized placebo controlled krill oil supplementation trial in typically developing adolescents, were used for the current study. The Omega-3 Index was determined with blood from a finger prick. At baseline, participants finished a neuropsychological test battery consisting of the Letter Digit Substitution Test (LDST), D2 test of attention, Digit Span Forward and Backward, Concept Shifting Test and Stroop test. Data were analyzed with multiple regression analyses with correction for covariates. The average Omega-3 Index was 3.83% (SD 0.60). Regression analyses between the Omega-3 Index and the outcome parameters revealed significant associations with scores on two of the nine parameters. The association between the Omega-3 Index and both scores on the LDST (beta = 0.136 and p = 0.039), and the number of errors of omission on the D2 (beta = -0.053 and p = 0.007). This is a possible indication for a higher information processing speed and less impulsivity in those with a higher Omega-3 Index.
Original languageEnglish
Article number13
Number of pages14
JournalNutrients
Volume8
Issue number1
DOIs
Publication statusPublished - 1 Jan 2016

Keywords

  • docosahexaneoic acid (DHA)
  • eicosapentaenoic acid (EPA)
  • adolescents
  • cognition
  • Omega-3 fatty acids
  • Omega-3 Index
  • POLYUNSATURATED FATTY-ACIDS
  • RANDOMIZED CONTROLLED-TRIAL
  • ATTENTION-DEFICIT/HYPERACTIVITY DISORDER
  • LONG-CHAIN OMEGA-3-FATTY-ACIDS
  • DOUBLE-BLIND
  • EXECUTIVE FUNCTIONS
  • FISH CONSUMPTION
  • ACADEMIC-ACHIEVEMENT
  • AUTISTIC SPECTRUM
  • MENTAL-HEALTH

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