https://www.selleckchem.com/products/flt3-in-3.html Motivational interviewing (MI) weight-loss interventions have garnered much attention, particularly in primary care. Few studies, however, have examined long-term outcomes of MI for weight loss in primary care. This study sought to examine the longer-term outcomes of a combination approach comprising MI and nutrition psychoeducation (MINP) with a publically available web-support component (i.e., livestrong.com). Thirty-one adults with overweight/obesity were enrolled in a 3-month MINP treatment delivered in primary care by medical assistants. Weight, blood pressure, and depression (beck depression inventory) were assessed at baseline and 1-year following treatment cessation (i.e., 15months total). Participants' average BMI was significantly lower 12-months following treatment. Approximately one-third of participants (34.8%) maintained 5% or more weight loss. Participants also experienced significant decreases in diastolic blood pressure, resting heart rate, and depression symptoms, but not systolic blood pressure or waist circumference. The scalable (2.5h total) MINP intervention delivered in primary care by medical assistants resulted in significant weight (medium effect size) and psychological improvements 12months later. These findings complement previous RCT findings that MI or nutrition psychoeducation interventions, delivered separately, resulted in small weight loss effects after 12months, with 5% and 17% of participants, respectively, maintaining 5% weight loss. It remains unclear, however, if implementing MI in primary care for weight loss is cost effective beyond providing nutrition psychoeducation alone. The clinical trial registration number is NCT02578199. IV, uncontrolled trial. IV, uncontrolled trial. The present study aimed to test the sociocultural Tripartite Influence Model (TIM) that helps to explain the associations between the sociocultural pressures to achieve stereotyped body ideals and disor