In summary , GI breakfasts do not affect cognitive domains in children and adolescents
This systematic review and meta- analysis aims to compare the effect of High-Glycemic Index ( GI ) versus Low-GI breakfasts on cognitive functions , including memory and attention , of children and adolescents .
Effects on cognitive performance of modulating the postprandial blood glucose profile at breakfast
Background / Objectives : Considering the importance of glucose as a brain substrate , the postpr and ial rate of glucose delivery to the blood could be expected to affect cognitive functions . The purpose was to evaluate to what extent the rate of glucose absorption affected measures of cognitive performance in the postpr and ial period . In addition , cognitive performance was evaluated in relation to individual glucoregulation . Subjects/ Methods : A white wheat bread ( WWB ) enriched with guar gum ( G-WWB ) with the capacity to produce a low but sustained blood glucose net increment was developed . The G-WWB was evaluated in the postpr and ial period after breakfast with respect to effects on cognitive function ( working memory and selective attention ( SA ) ) in 40 healthy adults ( 49–71 years , body mass index 20–29 kg/m2 ) , using a high glycaemic index WWB for comparison in a r and omised crossover design . Results : The G-WWB improved outcome in the cognitive tests ( SA test ) in the later postpr and ial period ( 75–225 min ) in comparison with the WWB ( P<0.01 ) . Subjects with better glucoregulation performed superior in cognitive tests compared with subjects with worse glucoregulation ( P<0.05 ) . Conclusions : Beneficial effects on cognitive performance were observed with the G-WWB in the late postpr and ial period . The positive effect is suggested to emanate from improved insulin sensitivity , possibly in a combination with an enhanced neural energy supply . The results highlight the importance of carbohydrate foods that induces a low but sustained blood glucose profile in enhancing postpr and ial cognitive functions
In summary , GI breakfasts do not affect cognitive domains in children and adolescents
This systematic review and meta- analysis aims to compare the effect of High-Glycemic Index ( GI ) versus Low-GI breakfasts on cognitive functions , including memory and attention , of children and adolescents .