Fatty fish intake and attention performance in 14–15 year old adolescents: FINS-TEENS - a randomized controlled trial

Nutrition Journal

Research

Livar Frøyland¹  Ingvild E. Graff¹  Lisbeth Dahl¹  Marian Kjellevold¹  Øyvind Lie¹  Jannike Øyen¹  Katina Handeland²  Siv Skotheim³  Kjell M. Stormark⁴  Valborg Baste⁵ 

[1] National Institute of Nutrition and Seafood Research (NIFES), P.O.Box 2029 Nordnes, 5817, Bergen, Norway;National Institute of Nutrition and Seafood Research (NIFES), P.O.Box 2029 Nordnes, 5817, Bergen, Norway;Department of Clinical Medicine, Faculty of Medicine, University of Bergen, P.O. Box 7800, 5020, Bergen, Norway;Regional Centre for Child and Youth Mental Health, Uni Research Health, P.O.Box 7810, 5020, Bergen, Norway;Regional Centre for Child and Youth Mental Health, Uni Research Health, P.O.Box 7810, 5020, Bergen, Norway;Department of Health Promotion and Development, University of Bergen, P.O.Box 7807, N-5020, Bergen, Norway;Uni Research Health, P.O.Box 7810, 5020, Bergen, Norway;

关键词: Fatty fish;    Omega-3 fatty acids;    Meat;    Cognition;    Supplements;    Food;    Dietary intervention;   

DOI  :  10.1186/s12937-017-0287-9

 received in 2017-07-07, accepted in 2017-09-21,  发布年份 2017

来源: Springer

【 摘 要 】

BackgroundFatty fish is the dominant dietary source of n-3 LCPUFAs but it also contains other micronutrients considered important for brain development and function. To our knowledge, the effect of fatty fish intake on cognitive function in adolescents has not been investigated in randomized controlled trials (RCTs) previously. The aim of the present trial was to investigate whether consumption of fatty fish meals three times per week for 12 weeks could alter attention performance in adolescents compared to similar meals with meat or n-3 LCPUFA supplements.MethodsIn the Fish Intervention Studies-TEENS (FINS-TEENS), adolescents from eight secondary schools (n = 426; age: 14-15y) were individually randomized. Attention performance was assessed with the d2 test of attention. Differences between groups from pre to post intervention were assessed with linear mixed effect models and general estimates equation. The fish group was set as reference. Dietary compliance was recorded for each meal throughout the trial and controlled for in the adjusted analyses.ResultsThe improvement in processing speed was significantly lower in the meat (−11.8; 95% CI: -23.3, −0.4) and supplement (−13.4; 95% CI: -24.9, −1.8) group compared to the fish group (reference). The supplement group also showed inferior improvement in total performance (−10.4; 95% CI: -20.0, −0.7) compared to the fish group (reference). The results were slightly affected when controlling for dietary compliance. Omission errors decreased in the meat group compared to the fish group (Incidence rate ratio = 0.85; 95% CI: 0.74, 0.98), but the difference disappeared when controlling for dietary compliance.ConclusionsWe observed a small beneficial effect of fatty fish, compared to meat meals and supplements on processing speed. However, these results are difficult to interpret due to low dietary compliance. This study shows that different taste preferences among participants is challenging in intervention trials with food. A prospective cohort design may be a better alternative when studying diet in the future.Trial registration numberClinicalTrials.gov registration number: NCT02350322.

【 授权许可】

CC BY   
© The Author(s). 2017