(P20-070-25) Feasibility, Acceptability, and Initial Outcomes: A Pilot Study of a Three-Month Online Dietary Weight-Loss Program in Saudi Arabia

Objectives: Obesity is a global concern, and Saudi Arabia faces a particularly high prevalence, with projections of up to 57% by 2035. This study aimed to evaluate the feasibility, acceptability, and initial outcomes of a three-month online dietary weight-loss program.

Methods: A single-group, pre-post design was used to assess the intervention. Adults with a BMI ≥ 25 kg/m² were recruited from King Abdullah Medical City (KAMC) in Saudi Arabia. The three-month program included daily weight tracking via a Wi-Fi scale, weekly online sessions, and nutrition coaching by a dietitian. Feasibility was assessed through recruitment, retention rates, session attendance, adherence to weight logging, and dietary data collection. Acceptability was evaluated through surveys and an exit survey to gather participant satisfaction and suggestions for improvement. Program outcomes were measured by anthropometric measurements and dietary intake changes, assessed through 24-hour dietary records and food frequency questionnaires (FFQs).

Results: Eighteen participants enrolled, with a 94% retention rate (N=17) at three months. All participants successfully accessed the apps for session attendance. Feasibility was demonstrated with a 6% dropout rate. Session completion rates showed 47% completed all 12 sessions, and 65% completed at least 75% of sessions. Daily weight monitoring showed 76% logged their weight for 60% of study days. Anthropometric measurements were completed by 100% at baseline and 88% at three months. Acceptability was high, with 88% finding the website easy to use and 76% satisfied with the program. Significant reductions were achieved in weight (-1.63 kg), waist and hip circumference. Dietary changes included a 36.4% reduction in calorie intake and a 65.9% increase in fiber density. Exit surveys (N=12) showed high satisfaction, with 67% recommending the program and 83% finding it enjoyable.

Conclusions: The three-month online weight-loss program was effective, well-received, and led to significant weight loss and diet improvements. Participants were satisfied, and their feedback will enhance a future program. Future studies should focus on refining enrollment criteria, addressing comorbidities, and examining long-term results for sustainability.

Funding Sources: USDA NIFA ILLU-698-936