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The OPTIFAST Program treats the whole person, not just his/her eating habits. Obesity is a complex disease caused by a combination of genetic, environmental and emotional/social factors. It often contributes to the development of a variety of other health problems such as high blood pressure and type 2 diabetes. With the help of specially trained health care providers, OPTIFAST treatment addresses the causes of obesity as well as its consequences. Choose OPTIFAST and join more than one million people who have enjoyed the benefits that OPTIFAST can provide.

The benefits of OPTIFAST treatment include:

  • First of its kind: OPTIFAST was the first comprehensive formula diet program for weight loss. It remains the gold standard for this type of obesity treatment and is the program that others try to be like.

  • Long Term Experience: over one million people treated since 1974.

  • Proven Therapy: over 80 studies published in recognized medical journals. 52 lb. average weight loss documented in over 20,000 patients completing the OPTIFAST program.

  • Ongoing Support: included both during and after weight loss to help you achieve and maintain success.

  • Lasting Success: 5 year follow-up studies show that over 50% of people who complete the OPTIFAST Program are able to keep enough weight off to improve their health long-term.   

Full Meal Replacement Weight Loss Program

The well-documented weight loss success of the OPTIFAST® Program is based on the use of a liquid Formula diet. This diet is portion-controlled, calorically precise, nutritionally complete, and has been shown to help people stick to their diet plan.

OPTIFAST shakes, soups and bars take the guesswork out of dieting.

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