Trial of Food Is Medicine Approaches for Obesity Treatment in Adults With Food Insecurity

Inclusion Criteria: * BMI\>30 kg/m2 * Screening positive for food insecurity using the well-validated, 10-item US Adult Food Security Survey Module. * Age 18 years and older * Completion of baseline assessments * Ability to engage in physical activity (i.e., can walk at least 2 blocks without stopping for rest) * Willing and able to provide pictures of food receipts to study team (or mail receipts to study team) * Willing and able to provide written informed consent and participate in all study activities * Female participants of child-bearing potential must agree in writing to use an approved method of contraception during the study Exclusion Criteria: * Significant psychiatric conditions (e.g., active substance abuse, schizophrenia) that may pose a risk to the participant during intervention, cause a change in weight, or limit ability to adhere to the program's behavioral recommendations * Pregnant or planning pregnancy in the next year * Planned move from the Baltimore area in the next year * Recently began a course of or changed the dosage of medication that can cause significant weight change (±5 kg) * Previous or planned obesity treatment with surgery or a weight-loss device * Weight loss of \>5 kg in the previous 90 days * Household member already participating in study due to potential contamination effects * Lack of stable residence and ability to store and prepare food * Lack of telephone * Severe food allergies * Following a specialized dietary regimen (e.g., gluten-free)