Yes! is right for you!

United States residents only.

Why ?

The OPTIFAST® program is a medically-supervised weight loss program that closely monitors and assesses progress towards better health and emotional well-being.

Average Weight 
Loss in 26 weeks

30 lbs

OPTIFAST® patients who actively participated in a 26-week medically-monitored program typically lost approximately 30 lbs.

weight loss

2x More

Compared to a reduced-calorie food-based* program

Average loss of 
total fat mass

11.3 kgs

Compared to a 4.4 kg loss observed in observed in individuals in a reduced-calorie food-based program*

Decrease in waist 

12 cm

Compared to a 7.7 cm decreased observed in reduced-calorie food-based program*

glucose levels


Weight loss with the OPTIFAST® program can help lower blood glucose vs baseline 2,3

Average decrease in 
blood pressure


Weight loss with the OPTIFAST® program can help manage hypertension2,4

Average decrease in 
total cholesterol


Weight loss with the OPTIFAST® program can help manage cholesterol levels2,4

* modified version of Diabetes Prevention Program (DPP)

How does work?

Typically lasting 26 to 52 weeks, the OPTIFAST® Program is comprised of 3 phases:

  • Active Weight Loss Phase

    12 to 16 weeks of total meal replacement

    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

    2 to 4 weeks transitioning to a healthy and balanced food-based diet

    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

    Up to 52 weeks with diet and lifestyle support for weight maintenance

    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.

Sucess Stories

Everyday, OPTIFAST® is helping people like you discover the benefits of a healthy lifestyle go far beyond weight loss. Find out what real patients have to say about their OPTIFAST® experience.