A randomized trial testing the efficacy of a novel approach to weight loss among men with overweight and obesity.

Abstract

To test the efficacy of a weight loss intervention designed to appeal to men. A randomized trial tested the efficacy of the Rethinking Eating and FITness (REFIT) weight loss program compared to a wait-list control. The 6-month intervention was delivered via two face-to-face sessions followed by Internet contacts. REFIT encouraged participants to create calorie deficits by making six 100-calorie changes to their eating daily while increasing physical activity, and the program encouraged customization through selection of specific diet strategies evaluated each week. Participants (N = 107, 44.2 years, 31.4 kg/m(2) , 76.6% white) were randomized into the study, and 90.6% provided data at 6 months. REFIT participants lost -5.0 kg (95% CI: -6.1, -3.9) at 3 months, which was maintained through 6 months (-5.3 kg, 95% CI: -6.5, -4.2); this was greater than the control group (p < 0.001; 6 months: -0.6, 95% CI: -1.8, 0.5). More REFIT participants (49%) achieved a 5% weight loss than control participants (19%; OR 9.4; 95% CI: 3.2, 27.4). An average of 11.2 (±2.7) of 13 of the online intervention contacts were completed. The novel REFIT intervention produced clinically significant weight losses. This approach holds promise as an alternative to traditional behavioral therapy for men.