Obesity

Changes in eating behavior in people with obesity after the use of a mobile health behavior change support system: an 18-month randomized controlled trial

Int J Obes (Lond)Published Randomised controlled trial

Authors' conclusion

The 6-month use of mHBCSS improved eating behavior, and changes in eating behavior were associated with weight loss.

Study context

Population
Volunteers with obesity aged 18–65 years, BMI 30–40 kg/m²
Participants
200 volunteers
Comparison
Immediate access to mobile health behavior change support system (mHBCSS) vs 6-month waiting period before mHBCSS
Primary endpoint
Changes in cognitive restraint, uncontrolled eating, emotional eating and binge eating (Three-Factor Eating Questionnaire-R18, Binge Eating Scale)
Methodological detailswaiting-list control, 18-month follow-up
  • Waiting-list control
  • 18-month follow-up

Primary result

As reported in the abstract

Change in eating behavior in Group 1 · 6 months

Cognitive restraint increased in Group 1

8.4 scores

95% CI 4.1–12.8p < 0.001

Uncontrolled eating decreased in Group 1 (−11.9 to −4.4; p < 0.001)

−8.2

Emotional eating decreased in Group 1 (−14.4 to −4.5; p < 0.001)

−9.4

Binge eating decreased in Group 1 (−4.9 to −1.9; p < 0.001)

−3.4

Further findings

Association of eating behavior changes with weight loss in Group 1 · 6 months

Weight loss associated with increase in cognitive restraint
P = 0.015
Weight loss associated with decreases in uncontrolled eating, emotional eating and binge eating
all p < 0.001

Eating behavior in Group 2 after 6 months of mHBCSS use, and maintenance · to 18 months

Group 2 demonstrated the same changes in eating behavior after using the mHBCSS for 6 months
Significant eating behavior changes were maintained to the end of follow-up in both groups

Retention rate · 6, 12 and 18 months

Retention at 6 months
98.5%
Retention at 12 months
89.0%
Retention at 18 months
79.0%

Original publication

Changes in eating behavior in people with obesity after the use of a mobile health behavior change support system: an 18-month randomized controlled trial. Int J Obes (Lond). Published 31 July 2026. doi:10.1038/s41366-026-02176-2

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