RecruitingBehavioural interventionTrial of Food Is Medicine Approaches for Obesity Treatment in Adults With Food InsecurityThe goal of this clinical trial is to learn if increased access to healthy foods, combined with behavioral weight loss (BWL) interventions, results in greater weight loss for adults with obesity and food insecurity. It will also learn about changes in health-quality of life and dietary quality. The main questions it aims to answer are: * Does BWL, combined with either home-delivered, medically-tailored (HOME) groceries or grocery vouchers (VOUCHER), result in greater weight loss than BWL alone? * Is the addition of HOME to BWL more effective at supporting adults with food insecurity and obesity to lose weight when compared to BWL and VOUCHER?