Weight Loss Using the Take Shape For Life Program or the Medifast Direct Program Versus a Self-Directed Diet

The Take Shape For Life (TSFL) Program group will be assigned to the Optimal Weight 5 \& 1 Plan™ for weight loss. This group will have scheduled coaching sessions with a TSFL coach for the duration of the study.

The Medifast Direct Program (MEDD) group will be assigned to the Medifast Achieve™ Plan (4 \& 2 \& 1 Plan®) for weight loss. MEDD participants will have access to the services of the Medifast Nutrition Support Team.

The Self-directed Control Group will be assigned to a food-based, reduced calorie diet consistent with the 2015 Dietary Guidelines for Americans.