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


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2017-10-02

AUTHORS

Katina Handeland, Jannike Øyen, Siv Skotheim, Ingvild E. Graff, Valborg Baste, Marian Kjellevold, Livar Frøyland, Øyvind Lie, Lisbeth Dahl, Kjell M. Stormark

ABSTRACT

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. More... »

PAGES

64

Identifiers

URI

http://scigraph.springernature.com/pub.10.1186/s12937-017-0287-9

DOI

http://dx.doi.org/10.1186/s12937-017-0287-9

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1092050880

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/28969711


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30 schema:description 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.
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37 LCPUFA
38 LCPUFA supplements
39 MethodsIn
40 TRIAL REGISTRATION
41 adolescents
42 aim
43 alternative
44 analysis
45 attention
46 attention performance
47 beneficial effects
48 brain development
49 cognitive function
50 cohort design
51 compliance
52 consumption
53 d2 test
54 design
55 development
56 diet
57 dietary compliance
58 dietary sources
59 differences
60 different taste preferences
61 dominant dietary source
62 effect
63 effects model
64 equations
65 error
66 estimate equation
67 fatty fish
68 fatty fish intake
69 fish
70 fish groups
71 fish intake
72 food
73 function
74 future
75 general estimates equation
76 good alternative
77 group
78 improvement
79 inferior improvement
80 intake
81 intervention
82 intervention trials
83 knowledge
84 linear mixed effects models
85 meal
86 meals three times
87 meat
88 meat group
89 meat meal
90 micronutrients
91 mixed effects models
92 model
93 number
94 older adolescents
95 omission errors
96 participants
97 performance
98 pre
99 preferences
100 present trial
101 processing speed
102 prospective cohort design
103 reference
104 registration
105 registration number
106 results
107 schools
108 secondary schools
109 similar meal
110 small beneficial effect
111 source
112 speed
113 study
114 supplement group
115 supplements
116 taste preferences
117 test
118 three times
119 time
120 total performance
121 trials
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