The program

The science-based program that delivers
weight loss for health gains

Your Journey with OPTIFAST logo

The OPTIFAST® Program is recommended for those with a BMI >30 kg/m2 or a BMI >28 kg/m2 with weight-related medical conditions. These include people whose health have been impacted by excessive weight.
  • Active Weight Loss Phase

    Total Meal Replacement during months 1-4

    Patients start by meeting with their medical provider for monitoring and counseling. Patients will also start to consume a diet of nutritionally complete OPTIFAST® full meal replacement products.

  • Transition Phase

    Transition to a healthy and balanced food based diet during months 4 – 6

    Gradually, patients transition back to self-prepared foods while they attend classes to help change their approach to food and alter their long-term lifestyle.

  • Maintenance Phase

    Diet and lifestyle support for weight maintenance during months 6 to 24

    Patients are encouraged to participate in ongoing support sessions to help maintain their weight loss and manage their long-term weight goals. This phase may also include partial meal replacements.

1. Ard JD, Lewis KH, Rothberg A, et al. Effectiveness of a total meal replacement program (OPTIFAST® program) on weight loss: results from the OPTIWIN study. Obesity. 2018; doi: 10.1002/oby.22303.
2. Ard JD, Schroeder MC, Kivilaid K, et al. Practical application of a comprehensive weight management program in patients with and without metabolic syndrome. J Obes Weight Loss Ther. 2014;S4:007.
3. Drawert S, Bedford K, Largent D. Change in glucose, blood pressure, and cholesterol with weight loss in medically obese patients. Obes Res. 1996;4(Suppl 1):67S.
4. Wadden TA, Foster GD, Letizia KA, Stunkard AJ. A multicenter evaluation of a proprietary weight reduction program for the treatment of marked obesity. Arch Intern Med. 1992;152(5):961-966.
5. Krishnaswami A, Ashok R, Sidney S, et al. Real-World Effectiveness of a Medically Supervised Weight Management Program in a Large Integrated Health Care Delivery System: Five-Year Outcomes. Perm J. 2018;22:17-082.
6. Hutcheon DA, et al. Short-Term Preoperative Weight Loss and Postoperative Outcomes in Bariatric Surgery. J Am Coll Surg. 2018;226:514-524. (doi:10.1016/j.jamcollsurg.2017.12.032)
7. Tarnoff M, et al. An evidence based assessment of preoperative weight loss in bariatric surgery. Obes Surg.2008;18:1059-1061.