Integration technology into health care: a scoping review of digital interventions for adult obesity management

BACKGROUND: Digital health interventions are emerging as an approach to support obesity management through self-management and remote care. However, utilization, impact, and practicality remain unclear. This study aims to map research on digital health interventions for obesity management among adults, describing their characteristics, uses, and outcomes, and identifying gaps. METHODS: A comprehensive scoping review following Arksey and O'Malley's methodological framework, in accordance with the Joanna Briggs Institute's guidelines and reported in line with the PRISMA-ScR guidelines, examined studies published between 2015 and 2025 across four databases: PubMed, Google Scholar, Scopus, and APA PsycNet. RESULTS: A total of 43 studies met the eligibility criteria. Digital health interventions for obesity encompassed consultations and education on healthy lifestyle, behavioral change strategies, physical activity, dietary management, weight goal setting, intermittent fasting, gamification, and psychological support. Digital health interventions were delivered through telehealth, mobile apps, web-based programs, multicomponent digital approaches integrating several digital tools, and hybrid models combining digital delivery with face-to-face communication. These interventions often supported by devices such as digital scales, wearable trackers, and telemonitoring units to enhance self-monitoring, adherence, and engagement. The interventions were implemented across clinical, workplace, and community settings, including adaptations developed during the COVID-19 pandemic. The included studies showed varying and inconsistently reported outcomes, with some showing significant weight loss, improvements in metabolic markers and behavioral outcomes, including dietary adherence, physical activity, and self-monitoring, as well as favorable feasibility outcomes and the potential to maintain continuity of service delivery during the COVID-19 outbreak. CONCLUSIONS: Digital health interventions used telehealth, mobile applications, web-based, multicomponent, and hybrid models across different settings, including healthcare settings (e.g., clinical and primary care) and community settings. Digital devices, such as scales, wearables, and activity trackers, were often incorporated to support self-tracking, adherence, and engagement. Reported outcomes included weight loss, improved self-monitoring, and behavioral changes such as enhanced dietary adherence and increased physical activity, and a favorable feasibility outcome; however, these outcomes were not consistently reported across all studies. Key gaps included short follow-up periods and limited evidence from LMICs. Future research should prioritize sustainable, equitable, scalable, culturally adapted, and cost-effective digital interventions.