A Randomized Controlled Trial Comparing the Efficacy of Commercial Weight Management Programs

Inclusion Criteria: * 18 years or older * BMI ≥27 kg/m² * Own a bodyweight scale that they can weigh themselves with during the study * Willing and able to comply with study protocol * Capable of providing informed consent * Able to read and write in English * Willing to be randomized * Willing to sign a Non Disclosure Agreement Exclusion Criteria: * Pregnant, lactating, or plans to become pregnant in the next 6 months * Previous bariatric surgery or planned bariatric surgery during the study period * Major surgery within the past 6 months or plans to have surgery during the study period * Participation in the previous 3 months or current participation in a structured behavioral weight loss program * Participation in another structured weight loss program during the study period (i.e., the next 3 months) * Communication needs that would render them unable to understand the study and/or intervention materials * Current or previous history of anorexia or bulimia nervosa * Engagement with vomiting or laxative use within the last 28 days with the aim of controlling their shape or weight * Currently taking anti-obesity medications, planning to take anti-obesity medications in the next 6 months, or previously taken anti-obesity medications in the previous 3 months * Weight loss of ≥ 5 kg (11 lb) in the previous 6 months * Self-reported diagnosis of severe depression, bipolar disorder, substance abuse, or psychosis * Participants who are involved in any other research studies at this time * Untreated thyroid disease or any changes (type or dose) in thyroid medication in last 6 months * Chronic/inflammatory gastrointestinal disorders (irritable bowel syndrome is acceptable) * History of heart problems (e.g., angina, bypass surgery, myocardial infarction, etc.) within previous 6 months * Diagnosis of type 1 or type 2 diabetes * Presence of implanted cardiac defibrillator or pacemaker * History of cancer within past 5 years or current treatment for cancer * Hospitalization for psychiatric disorders during the last 12 months