Overweight premenopausal women ( n = 113 ; body mass index : 25 to 35 kg/m ( 2 ) ; 30 to 50 years old ) were randomized into three interventions : group A , a dietitian-led intervention ; group B , a dietitian-led intervention incorporating MRs ; and group C , a clinical office-based intervention incorporating MRs. In year 1 , groups A and B attended 26 group sessions , whereas group C received the same educational materials during 26 10-minute office visits with a physician-nurse team .
