Inclusion Criteria:  high Food Responsiveness BMI between 25kg/m^2 and 45kg/m^2 able to read English at a 5th grade reading level willing and able to participate in assessment visits and treatment sessions, whether held in-person or via password protected Zoom meetings able to provide data through questionnaires has a smart phone through which they can complete Ecological Momentary Assessments  Exclusion Criteria:  major medical conditions such as diabetes or recent history of coronary heart disease; symptoms of angina, stroke, osteoarthritis, osteoporosis, orthopedic problems that would limit activity during the following 18 months; or any other serious medical condition that would make physical activity unsafe bulimia or anorexia, significant cognitive impairment, a known psychotic disorder, acute suicidal ideation, moderate or severe alcohol or substance use disorder, or unstable psychiatric illness (e.g., recent psychiatric hospitalization in the past 3 years) medical or psychological problems that could make adherence with the study protocol difficult or dangerous pregnant, lactating, or planning to become pregnant in the next 18 months participating in other weight control programs and/or taking medication for weight loss previous bariatric surgery moving out of the San Diego area for the duration of their study enrollment (18 months)