INFLUENCE OF SELF-WEIGHING BEHAVIOR ON WEIGHT LOSS AND MAINTENANCE IN THE ADULT MALE POPULATION

Background: Self-weighting, a core behavioral component of weight management, is recommended by major clinical guidelines, but evidence for its effectiveness in adult males is scarce. Objective: To assess the association between self-weighing frequency and changes in body weight and composition among overweight and obese adult males. 
Methods: This retrospective observational study analyzed electronic medical records from adult male employees (BMI ≥25 kg/m²) who used a body composition analyzer (Tanita MC-980 MA, Japan) at least twice during the first six months of 2025. Participants were grouped by self-weighing frequency. Primary outcomes included changes in body weight and BMI. Secondary outcomes included changes in body fat percentage, fat mass, and visceral fat level. Statistical analyses were performed using SPSS v27, with significance set at p < 0.05. 
Results: Eighty-nine participants met the inclusion criteria. Higher self-weighing frequency correlated with greater reductions in body weight and BMI (p < 0.05). Those who weighed themselves more often showed greater improvements in body fat percentage and fat mass compared to those with a lower frequency. The association held across the overweight and obese subgroups. Effect sizes indicated clinically meaningful reductions in adiposity parameters among high-frequency self-weighers. 
Conclusions: Modest reductions in body fat percentage and mass were observed over time. However, self-weighing intensity alone did not appear to independently drive clinically meaningful weight reduction. Future trials incorporating structured dietary interventions, behavioral feedback, and assessment of psychological mediators are needed to clarify the role of self-monitoring within comprehensive obesity treatment.