Several specific population interventions that achieved a Class I or IIa recommendation with grade A or B evidence were identified , providing a set of specific evidence -based strategies that deserve close attention and prioritization for wider implementation .
Effective interventions included specific approaches in all 6 domains evaluated for improving diet , increasing activity , and reducing tobacco use .
The writing group also identified several specific interventions in each of these domains for which current evidence was less robust , as well as other inconsistencies and evidence gaps , informing the need for further rigorous and interdisciplinary approaches to evaluate population programs and policies .
This systematic review identified and grade d the evidence for a range of population -based strategies to promote lifestyle change .
BACKGROUND Poor lifestyle behaviors , including suboptimal diet , physical inactivity , and tobacco use , are leading causes of preventable diseases globally .
Although even modest population shifts in risk substantially alter health outcomes , the optimal population -level approaches to improve lifestyle are not well established .
Impact of different food label formats on healthiness evaluation and food choice of consumers: a randomized-controlled study
Background Front of pack food labels or signpost labels are currently widely discussed as means to help consumers to make informed food choices . It is hoped that more informed food choices will result in an overall healthier diet . There is only limited evidence , as to which format of a food label is best understood by consumers , helps them best to differentiate between more or less healthy food and whether these changes in perceived healthiness result in changes of food choice . Methods In a r and omised experimental study in Hamburg/Germany 420 adult subjects were exposed to one of five experimental conditions : ( 1 ) a simple " healthy choice " tick , ( 2 ) a multiple traffic light label , ( 3 ) a monochrome Guideline Daily Amount ( GDA ) label , ( 4 ) a coloured GDA label and ( 5 ) a " no label " condition . In the first task they had to identify the healthier food items in 28 pair-wise comparisons of foods from different food groups . In the second task they were asked to select food portions from a range of foods to compose a one-day 's consumption . Differences between means were analysed using ANOVAs . Results Task I : Experimental conditions differed significantly in the number of correct decisions ( p < 0.001 ) . In the condition " no label " subjects had least correct decisions ( 20.2 ± 3.2 ) , in the traffic light condition most correct decisions were made ( 24.8 ± 2.4 ) . Task II : Envisaged daily food consumption did not differ significantly between the experimental conditions . Conclusion Different food label formats differ in the underst and ing of consumers . The current study shows , that German adults profit most from the multiple traffic light labels . Perceived healthiness of foods is influenced by this label format most often . Nevertheless , such changes in perceived healthiness are unlikely to influence food choice and consumption . Attempts to establish the informed consumer with the hope that informed choices will be healthier choices are unlikely to change consumer behaviour and will not result in the desired contribution to the prevention of obesity and diet related diseases
Several specific population interventions that achieved a Class I or IIa recommendation with grade A or B evidence were identified , providing a set of specific evidence -based strategies that deserve close attention and prioritization for wider implementation .
Effective interventions included specific approaches in all 6 domains evaluated for improving diet , increasing activity , and reducing tobacco use .
The writing group also identified several specific interventions in each of these domains for which current evidence was less robust , as well as other inconsistencies and evidence gaps , informing the need for further rigorous and interdisciplinary approaches to evaluate population programs and policies .
This systematic review identified and grade d the evidence for a range of population -based strategies to promote lifestyle change .
BACKGROUND Poor lifestyle behaviors , including suboptimal diet , physical inactivity , and tobacco use , are leading causes of preventable diseases globally .
Although even modest population shifts in risk substantially alter health outcomes , the optimal population -level approaches to improve lifestyle are not well established .