The investigators propose to 1) assess the feasibility, acceptability and preliminary efficacy of a gender- and culturally-sensitive weight loss intervention in 48 overweight/obese Hispanic males ages 18-64 over 12 weeks; 2) assess participant characteristics and process measures related to the uptake of mobile-health (mHealth) technology in overweight/obese Hispanic males over 12 weeks; and 3) assess pathologic changes in the liver in Hispanic men enrolled in a 12-week weight loss intervention using a non-invasive MRI as a therapeutic response biomarker.
Inclusion Criteria: * 18-64 years of age * BMI between 25 to 45.0 kg/m² (NOTE: The investigators elected to cap this at 45.0 kg/m² to minimize potential risks and to reduce the potential for obesity to limit exercise participation) * Ability to provide informed consent and health risk assessment prior to participation in this study * Speak, read, and write either English and/or Spanish Exclusion Criteria: * Uncontrolled diabetes mellitus * History of bariatric surgery * Report medical condition or treatment for a medical condition that could affect body weight or ability to engage in structured physical activity that is consistent with the intervention for this study * Current congestive heart failure, angina, uncontrolled arrhythmia, or other symptoms indicative of an increased acute risk for a cardiovascular event * Resting systolic blood pressure of ≥150 mmHg or resting diastolic blood pressure of ≥90 mmHg * Eating disorders that would contraindicate weight loss or physical activity * Alcohol or substance abuse * Currently treated for psychological issues (i.e. depression, bipolar disorder, etc.), taking psychotropic medications with the previous 12 months, or hospitalized for depression within the previous 5 years * Report exercise on ≥3 days per week for ≥ 20 minutes per day over the past 3 months * Report weight loss of ≥5% or participating in a weight reduction diet program in the past 3 months * Report plans to relocate to a location that limits their access to the study site or having employment, personal, or travel commitments that prohibit attendance to all of the scheduled assessments