An experimental evaluation of a prototype public access nutrition information system for supermarkets.

Abstract

Located the Nutrition for a Lifetime System (NLS-1), a prototype interactive information system, in a large supermarket to help users decrease high-fat food purchases and increase high-fiber food purchases. Study participants were randomly assigned to control (n = 23; used the NLS-1 to enter food purchases only) or experimental (n = 26; viewed videodisc instructional programs, received prompts, made commitments, received feedback from the NLS-1) conditions. According to data entered in the NLS-1 and actual food shopping receipts, experimental participants significantly reduced higher fat purchases. Increases in higher fiber purchases favored the experimental group but were not significant.

Adaptive e-learning to improve dietary behaviour: a systematic review and cost-effectiveness analysis.

“…Other interventions sought to increase fibre intake, 44,45,55,59,[80][81][82] Comparators used in included studies Table 4 shows a summary of comparators used in the studies. Fourteen studies 44,[48][49][50][51]53,54,56,59,69,74,77,79,80 trialled the intervention against a non-intervention control group.…”

“…Other interventions focused more on the setting of goals and providing feedback on attainment of these goals (15 studies 42,[44][45][46][47]49,52,55,58,64,72,73,75,82,83 ). Several studies provided incentives for participation, mainly vouchers, but also cash or gifts (as opposed to incentives for providing follow-up data) (15 studies 44,45,[47][48][49]51,56,59,63,67,69,74,78,81,84 ). Several interventions also provided recipes or meal plans (20 studies [42][43][44][45]47,51,52,62,65,67,68,70,[73][74][75][76][77]79,81,82 ) or provided some kind of psychological support (14 studies …”

“…A majority of interventions involved the presentation of nutrition, health and lifestyle information (32 studies 43,44,[46][47][48][49][50][51][52][53][54]57,58,60,62,[65][66][67][68][69][70][71][72][73][75][76][77][79][80][81][82][83] ), the entering of food consumption data (25 studies 42,[45][46][47]49,50,[52][53][54][55]57,58,65,[67][68][69][72][73][74][75][76]…”

“…The majority of interventions sought to reduce fat intake 44,45,[49][50][51]54,55,[58][59][60][61][62]64,65,[67][68][69][72][73][74][76][77][78][79][80][81][82][83] (28 interventions) and/or to increase fruit and vegetable intake 43,44,[47][48][49][50][51]55,56,58,59,62,67,68,[71][72][73]75,[80][81][82] (21 interventions). Other interventions sought to increase fibre intake, 44,45,55,59,…”

“…All e-learning interventions were delivered in high-income countries, and the majority of interventions were delivered in the USA [42][43][44][45][47][48][49][50][51][52][53]55,56,58,59,62,64,66,[70][71][72][73][74][75][80][81][82][83][84] research groups dedicated to e-learning and diet research; hence, the geographic clustering of studies. For example, a single large e-learning research group produced all eight RCTs set in the Netherlands and Belgium.…”