Anne?Kathrin Illner|Ute Nöthlings|K Wagner|Heather Ward|Heiner Boeing
The Assessment of Individual Usual Food Intake in Large-Scale Prospective Studies
German Institute of Human Nutrition|German Institute of Human Nutrition|German Institute of Human Nutrition|University of Cambridge|German Institute of Human Nutrition
recent research called question current practice estimate individual usual food intake largescale studies studies usual food intake defined diet past year aim review summarise concepts dietary assessment methods providing food intake data time period conceptualised framework given help researchers understand recent developments improve dietary assessment largescale prospective studies also help spot gaps need addressed future methodological research conceptual framework illustrates current options assessment individuals food consumption 1 year ideally persons food intake day year assessed due participants burden organisational financial constraints however options limited directly requesting longterm average eg food frequency questionnaires selecting days detailed food consumption measurements eg 24hour dietary recalls using snapshot techniques eg barcode scanning purchases seems necessary important evaluate performance statistical modelling individual usual food intake available sources future dietary assessment might profit growing prominence internet telecommunication technologies enhance available data food consumption study participant research crucial investigate performance innovative assessment tools however selfreported nature data always lead bias