Accessible behavioral interventions for improving weight loss outcomes are needed for overweight and obese individuals. This systematic review was conducted between 2010 through January 2020 to evaluate the use of mobile technology (mHealth) versus Web-based interventions (eHealth) and weight loss outcomes (weight loss, body fat, waist circumference) with or without individualized clinician feedback. Thirteen randomized controlled trials (7 [mHealth] and 6 [eHealth]) and 1 cohort (mHealth) met the inclusion criteria. The use of both methods with clinician feedback was positively associated with percent weight loss and body fat, waist circumference, and behavior change.
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