For the proposed study, participants will receive specific sessions from the psychologist on value consistent behaviour, acceptance skills, and mindfulness skills. Their self-reported perceived consistency with their values and health behaviours will be recorded along with their weight at each session for the duration of the year-long program. The investigators will also assess their acceptance and mindfulness skills at 6 months and 1 year. The investigators will continue to monitor their value-consistent behaviour, acceptance skills, mindfulness skills, weight-related health behaviours, weight and medication use at 6 months, 1 year and 5 years post the completion of the Partners for Healthier Weight program.