The weight stable control group will be monitored bi-weekly by study staff (with an additional phone call at week 1) to ensure weight stability over the course of the study. Participants will be weighed on a bi-weekly basis and encouraged to maintain weight within ±5% of baseline. To promote compliance and retention, participants will also be invited to bi-weekly group educational sessions, where non-weight loss health related topics will be presented by study staff. Lastly, if weight stable participants are able to attend 75% (i.e. 9 of 12) educational sessions, all baseline and follow-up testing sessions, and maintain weight stability over the course of the study (defined as less than a 5% differential between weight measured at week 0 and 24), they will be eligible to receive up to 3 months of Medifast MRPs along with a 30-60 minute RD-led dietary instruction session on how to follow the Medifast 4 & 2 & 1 Plan.