The main aim of this study was to develop a smartphone application specializing in assessing
dietary fiber intake of university students. The validity of the application was tested among 45
volunteers, their daily intake was recorded for 3 days using the Daily Fiber application, and in-
takes were compared with a 3-day food record matched to the same days. The mean intake of
dietary fiber using the 3-day food record and our application was 10.08 ± 4.48 and 10.21 ± 4.64
g/d, respectively (P < .01). Overall, Daily Fiber is a promising tool for assessing dietary fiber
intake among undergraduates.