Feasibility and validity of mobile phones to assess dietary intake

Digital Food Records in Community-Based Interventions: Mixed-Methods Pilot Study (Preprint)

“…The high rate of participation as well as the overall acceptability and enthusiasm toward the app demonstrate its ease of use among this population, and is similar to previous findings where participants tend to express satisfaction with DFRs [15,21,24]. Photo-documentation is less intensive and burdensome than completing 24-hour dietary recalls or completing daily diet diaries [21], and can be particularly accessible for those with lower levels of literacy [13][14][15].…”

“…DFRs also have the potential to maximize the validity of dietary intake data collected by providing researchers with pictures documenting portion sizes consumed, additional undocumented food items, and the rate of food consumption. They also may reduce the burden on participants to record precise intake information [10][11][12][13] which may be particularly useful for populations with lower literacy [14,15]. Previous research has demonstrated the feasibility [10,[16][17][18], and validity of DFRs [14][15][16][19][20][21].…”

mHealth technologies in the management of obesity: a narrative review

“…23 Self-monitoring apps and devices that measure both diet and physical activity behaviors enable individuals to become aware of their practices and may provide feedback as individuals set out to improve their health. 19,24,25 However, the accuracy of all these apps and devices requires further independent evaluation and publication in peer-reviewed literature by researchers. utility is the app, with the majority offered by the private sector having little input from health professionals with the expert knowledge and skills to manage overweight and obese individuals.…”

Feasibility study of an Online 24-hr Dietary Assessment Tool: myfood24, in a clinical population

“…Such technologies in healthy populations are being shown to reduce costs [10], improve completion rates and increase the accuracy of the dietary assessment [5,7,[10][11][12].…”