The 
Program
The OPTIFAST® program is a medically-supervised weight loss program that closely monitors and assesses progress towards better health and emotional well-being.
“Happy! It is all good—there’s nothing negative about losing weight. I am grateful for all the support from the great medical team.”
Craig
2019 New You Winner
Grass Valley, CA
“My fiancé, Evan, and I had done many other diet programs before, got gym memberships and worked out… We needed something that was going to improve our health too – and OPTIFAST® did that for us! I can’t thank OPTIFAST® enough for giving me back my life!”
Candice
2019 New You Winner
Mays Landing, NJ
“I've lost weight before – the wrong way with the wrong programs. But with this program, I get to actually enjoy eating food [again]. I make better choices – I’m just happy and thriving!”
Robert
2019 New You Winner
Pittsburgh, PA
The 
Difference
The OPTIFAST® program is a medically-supervised weight loss program that closely monitors and assesses progress towards better health and emotional well-being. Typical results at 26 weeks1:
AVERAGE WEIGHT LOSS
Approx.
30 lb
at 26 weeks1
2x more weight loss compared to a reduced calorie
food-based program
HYPERTENSION
10%-15%
average decrease in blood pressure2
HIGH CHOLESTEROL
15%
average decrease in total cholesterol3
DIABETES
Lower
blood glucose levels vs. baseline4
Long Term Results
AFTER 1 YEAR
OPTIFAST® patients who actively participate in a 26-week program typically lose approximately 30 lbs. (2x more compared to a reduced-calorie food-based* program) and maintain approximately a 25-lb. weight loss at 1 year.1
AFTER 2 YEARS
OPTIFAST® patients maintained an average weight loss of approximately 19 lbs. after 2 years and 15 lbs. after 3 years from starting the program.5
How Works
Our comprehensive weight loss program contains multiple components, including medical, nutritional, and behavioral support, to help you lose weight and improve your health. Click each subject to learn more.
Medical Monitoring
Evaluation and support of patients health and well-being throughout the program.
Nutrition Education
Strategies for successful long-term lifestyle change.
Exercise Guidance
Integrating activity into a weight loss program leads to greater success.
Patient Support
Website that helps keep patients motivated.
Full Meal Replacement
Nutritionally complete (in 5 servings) with at least 24 key vitamins & minerals.
Lifestyle Education
Lifestyle Education Series™ modules help patients relearn how to approach food and eating.
The Weight Loss Journey
Participation in the OPTIFAST® program includes 3 key phases designed to help patients lose weight by helping change their relationship with food and eating. Each patient receives an individual evaluation to customize the program to meet their individual needs.
ACTIVE WEIGHT LOSS PHASE
During this phase, the patient will eat a diet of OPTIFAST® full meal replacement products.
TRANSITION
PHASE
Self-prepared foods are gradually reintroduced into the diet, while patients attend classes to help change the way they think about and approach food and eating.
MAINTENANCE
PHASE
Patients should continue to attend ongoing support sessions to help them maintain their weight loss and manage weight long-term.
*modified version of Diabetes Prevention Program (DPP) diet
- 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.
- 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.
- 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.
- 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.
- 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.
- 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)
- Tarnoff M, et al. An evidence based assessment of preoperative weight loss in bariatric surgery. Obes Surg.2008;18:1059-1061.