Public Health Article

Systematic review and meta-analysis of internet-delivered interventions providing personalized feedback for weight loss in overweight and obese adults

Review Quality Rating: 10 (strong)

Citation: Sherrington A, Newham J, Bell R, Adamson A, McColl E, & Araujo-Soares V. (2016). Systematic review and meta-analysis of internet-delivered interventions providing personalized feedback for weight loss in overweight and obese adults. Obesity Reviews, 17(6), 541-551.

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BACKGROUND: Obesity levels continue to rise annually. Face-to-face weight loss consultations have previously identified mixed effectiveness and face high demand with limited resources. Therefore, alternative interventions, such as internet-delivered interventions, warrant further investigation. The aim was to assess whether internet-delivered weight loss interventions providing personalized feedback were more effective for weight loss in overweight and obese adults in comparison with control groups receiving no personalized feedback.
METHOD: Nine databases were searched, and 12 studies were identified that met all inclusion criteria.
RESULTS: Meta-analysis, identified participants receiving personalized feedback via internet-delivered interventions, had 2.13kg mean difference (SMD) greater weight loss (and BMI change, waist circumference change and 5% weight loss) in comparison with control groups providing no personalized feedback. This was also true for results at 3 and 6-month time points but not for studies where interventions lasted =12?months.
CONCLUSION: This suggests that personalized feedback may be an important behaviour change technique (BCT) to incorporate within internet-delivered weight loss interventions. However, meta-analysis results revealed no differences between internet-delivered weight loss interventions with personalized feedback and control interventions =12months. Further investigation into longer term internet-delivered interventions is required to examine how weight loss could be maintained. Future research examining which BCTs are most effective for internet-delivered weight loss interventions is suggested.


Adolescents (13-19 years), Adults (20-59 years), Health Care Setting, Internet, Meta-analysis, Nutrition, Obesity, Physical Activity, Seniors (60+ years), Social Support (e.g., counseling, case management, outreach programs)

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