Table 1.

Characteristics of image-assisted 24-hour dietary recall methods.

Study	Participants	Age of participants (years), mean (SD)	Device for image collection	Capture	View	Transmit
[25]	14 healthy adults	35 (12)	Mobile phones with camera	✓	✓	✓
[27]	43 healthy adult women	35 (9)	Digital camera	✓	✓	Not reported
[22]	10 healthy adults	33 (11)	SenseCam	✓	✓	✓
[29]	23 adults with intellectual and developmental disabilities	26.4 (9.7)	iPad 2 (Apple Inc)	✓	✓	Not reported
[26]	54 healthy adults	Range: 19-28	Smartphone	✓	✓	✓
[28]	40 adults (20 females, 20 males)	Females: 28 (7); males: 35 (17)	SenseCam	✓	✓	✓