Nawaraj Bhattarai|A Toby Prevost|Alison J. Wright|Judith Charlton|Caroline Rudisill|Martin Gulliford
Effectiveness of interventions to promote healthy diet in primary care: systematic review and meta-analysis of randomised controlled trials
King's College London|King's College London|King's College London|King's College London|London School of Economics and Political Science|King's College London
diet rich fruit vegetables dietary fibre low fat associated reduced risk chronic disease review aimed estimate effectiveness interventions promote healthy diet primary prevention among participants attending primary care systematic review trials using individual cluster randomisation interventions delivered primary care promote dietary change 12 months healthy participants free chronic disease defined high risk states outcomes change fruit vegetable intake consumption total fat fibre changes serum cholesterol concentration ten studies included 12414 participants design delivery interventions diverse respect grounding behavioural theory intervention intensity metaanalysis three studies showed increase fruit consumption 025 001 049 servings per day increase vegetable consumption 025 006 044 serving per day three studies reported fruit vegetable consumption together showed pooled increment 050 013 087 servings per day pooled effect consumption dietary fibre four studies estimated 197 043 352 gm fibre per day data five studies showed mean decrease total fat intake 52 total energy 15 88 data three studies showed mean decrease serum cholesterol 010 019 000 mmoll presentlyreported interventions promote healthy diet primary prevention primary care illustrate diverse range intervention methods may yield small beneficial changes consumption fruit vegetables fibre fat 12 months present results exclude possibility effective intervention strategies might developed