Lay Health Coaches for Weight Loss: Peers Versus Mentors

Inclusion Criteria: * Body Mass Index between 30 and 40 * Age between 40 and 60 years * English speaking Exclusion Criteria: * Are unwilling to communicate regularly with a weight loss coach * Report not being able to walk 2 blocks (1/4 mile) without stopping * Are currently participating in a weight loss program, taking a weight loss medication, have a history of bariatric surgery, or lost ≥ 5% of body weight during the past 6-months * Are pregnant, lactating, less than 6-months post-partum, or plan to become pregnant during the intervention timeframe * Report a heart condition, chest pain during periods of rest or activity, or loss of consciousness on the Physical Activity Readiness Questionnaire * Report a medical condition that would jeopardize their safety if involved in a weight management program with diet and exercise guidelines * Report conditions that, in the judgment of the PI, would render the participant unlikely to follow the study protocol (e.g., relocation, dementia, terminal illness, substance abuse).