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Nutrients 2017, 9(3), 200;

Validation of a Tablet Application for Assessing Dietary Intakes Compared with the Measured Food Intake/Food Waste Method in Military Personnel Consuming Field Rations

Department of Nutritional Sciences, University of Toronto, Toronto, ON M5S 3E2, Canada
Faculty of Kinesiology and Physical Education, University of Toronto, Toronto, ON M5S 2W6, Canada
Dalla Lana School of Public Health, University of Toronto, Toronto, ON M5T 3M2, Canada
Defence Research and Development Canada—Toronto Research Centre, Toronto, ON M3K 2C9, Canada
Author to whom correspondence should be addressed.
Received: 16 December 2016 / Revised: 3 February 2017 / Accepted: 23 February 2017 / Published: 27 February 2017
(This article belongs to the Special Issue Technology Based Approaches to Dietary Intake Assessment)
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The collection of accurate dietary intakes using traditional dietary assessment methods (e.g., food records) from military personnel is challenging due to the demanding physiological and psychological conditions of training or operations. In addition, these methods are burdensome, time consuming, and prone to measurement errors. Adopting smart-phone/tablet technology could overcome some of these barriers. The objective was to assess the validity of a tablet app, modified to contain detailed nutritional composition data, in comparison to a measured food intake/waste method. A sample of Canadian Armed Forces personnel, randomized to either a tablet app (n = 9) or a weighed food record (wFR) (n = 9), recorded the consumption of standard military rations for a total of 8 days. Compared to the gold standard measured food intake/waste method, the difference in mean energy intake was small (−73 kcal/day for tablet app and −108 kcal/day for wFR) (p > 0.05). Repeated Measures Bland-Altman plots indicated good agreement for both methods (tablet app and wFR) with the measured food intake/waste method. These findings demonstrate that the tablet app, with added nutritional composition data, is comparable to the traditional dietary assessment method (wFR) and performs satisfactorily in relation to the measured food intake/waste method to assess energy, macronutrient, and selected micronutrient intakes in a sample of military personnel. View Full-Text
Keywords: dietary assessment; validation; smartphone; technology dietary assessment; validation; smartphone; technology

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Ahmed, M.; Mandic, I.; Lou, W.; Goodman, L.; Jacobs, I.; L’Abbé, M.R. Validation of a Tablet Application for Assessing Dietary Intakes Compared with the Measured Food Intake/Food Waste Method in Military Personnel Consuming Field Rations. Nutrients 2017, 9, 200.

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