Michelle C. Carter|Victoria Burley|Camilla Nykjaer|Janet Cade
‘My Meal Mate’ (MMM): validation of the diet measures captured on a smartphone application to facilitate weight loss
University of Leeds|University of Leeds|University of Leeds|University of Leeds
accurate dietary assessment essential foundation research nutritional epidemiology due weaknesses current methodology attention turning strategies automate dietary assessment process improve accuracy reduce costs burden participants researchers meal mate mmm smartphone application designed support weight loss present study aimed validate diet measures recorded mmm reference measure 24 h dietary recalls sample fifty volunteers recorded food drink intake mmm 7 period contacted twice random conduct 24 h telephone recalls daily totals energy kj macronutrients recorded mmm compared corresponding day recall using tests group means pearsons correlations blandaltman analysis used assess agreement methods energy kj recorded mmm correlated well recalls day 1 r 077 95 ci 062 086 day 2 r 085 95 ci 074 091 small mean difference day 1 mmm recall 68 kjd 95 ci 553 418 kj 16 kcald 95 ci 127 100 kcal day 2 mmm recall 441 kjd 95 ci 854 29 kj 105 kcald 95 ci 204 7 kcal blandaltman analysis showed wide limits agreement methods 3378 3243 kjd 807 775 kcald day 1 individual level limits agreement mmm 24 h recall wide however group level mmm appears potential dietary assessment tool