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 ) .
Design of the OPUS School Meal Study: A randomised controlled trial assessing the impact of serving school meals based on the New Nordic Diet
Introduction : Danish children consume too much sugar and not enough whole grain , fish , fruit , and vegetables . The Nordic region is rich in such foods with a strong health-promoting potential . We lack r and omised controlled trials that investigate the developmental and health impact of serving school meals based on Nordic foods . Aim : This paper describes the rationale , design , study population , and potential implication s of the Optimal well-being , development and health for Danish children through a healthy New Nordic Diet ( OPUS ) School Meal Study . Methods : In a cluster-r and omised cross-over design , 1021 children from 3rd and 4th grade s ( 8–11 years old ) at nine Danish municipal schools were invited to participate . Classes were assigned to two 3-month periods with free school meals based on the New Nordic Diet ( NND ) or their usual packed lunch ( control ) .  Dietary intake , nutrient status , physical activity , cardiorespiratory fitness , sleep , growth , body composition , early metabolic and cardiovascular risk markers , illness , absence from school , wellbeing , cognitive function , social and cultural features , food acceptance , waste , and cost were assessed . Results : In total , 834 children ( 82 % of those invited ) participated . Although their parents were slightly better educated than the background population , children from various socioeconomic background s were included . The proportion of overweight and obese children ( 14 % ) resembled that of earlier examinations of Danish school children . Drop out was 8.3 % . Conclusions : A high inclusion rate and low drop out rate was achieved . This study will be the first to determine whether school meals based on the NND improve children ’s diet , health , growth , cognitive performance , and early disease risk markers
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 ) .