This dietary pattern did not significantly affect 2-h post-pr and ial blood glucose and Matsuda index .
Conclusions Adherence to the ND might improve serum insulin and HOMA-IR levels ; however , this effect was not confirmed for other markers of blood glucose control .
Aims Investigations on the possible effect of the Nordic diet ( ND ) on the glycemic control and the risk of diabetes have led to inconsistent results .
The present study tried to determine the effect of the ND on the markers of blood glucose control using a systematic review and meta- analysis of r and omized controlled clinical trials ( RCTs ) .
The effects of Nordic school meals on concentration and school performance in 8- to 11-year-old children in the OPUS School Meal Study: a cluster-randomised, controlled, cross-over trial.
It is widely assumed that nutrition can improve school performance in children ; however , evidence remains limited and inconclusive . In the present study , we investigated whether serving healthy school meals influenced concentration and school performance of 8- to 11-year-old Danish children . The OPUS ( Optimal well-being , development and health for Danish children through a healthy New Nordic Diet ) School Meal Study was a cluster-r and omised , controlled , cross-over trial comparing a healthy school meal programme with the usual packed lunch from home ( control ) each for 3 months ( NCT 01457794 ) . The d2 test of attention , the Learning Rating Scale ( LRS ) and st and ard tests on reading and mathematics proficiency were administered at baseline and at the end of each study period . Intervention effects were evaluated using hierarchical mixed models . The school meal intervention did not influence concentration performance ( CP ; primary outcome , n 693 ) or processing speed ; however , the decrease in error percentage was 0·18 points smaller ( P<0·001 ) in the intervention period than in the control period ( medians : baseline 2·03 % ; intervention 1·46 % ; control 1·37 % ) . In contrast , the intervention increased reading speed ( 0·7 sentence , P=0·009 ) and the number of correct sentences ( 1·8 sentences , P<0·001 ) , which corresponded to 11 and 25 % , respectively , of the effect of one school year . The percentage of correct sentences also improved ( P<0·001 ) , indicating that the number correct improved relatively more than reading speed . There was no effect on overall math performance or outcomes from the LRS . In conclusion , school meals did not affect CP , but improved reading performance , which is a complex cognitive activity that involves inference , and increased errors related to impulsivity and inattention . These findings are worth examining in future trials
This dietary pattern did not significantly affect 2-h post-pr and ial blood glucose and Matsuda index .
Conclusions Adherence to the ND might improve serum insulin and HOMA-IR levels ; however , this effect was not confirmed for other markers of blood glucose control .
Aims Investigations on the possible effect of the Nordic diet ( ND ) on the glycemic control and the risk of diabetes have led to inconsistent results .
The present study tried to determine the effect of the ND on the markers of blood glucose control using a systematic review and meta- analysis of r and omized controlled clinical trials ( RCTs ) .