Product & Plan FAQs

General Information

What is Medifast?

Medifast is a nutritionally balanced and clinically proven weight loss program that helps people lose weight faster and more effectively than traditional diet plans. Medifast is convenient and simple to follow, emphasizing portion-controlled eating at regular times throughout the day. Medifast Meals are individually portioned, calorie and carbohydrate controlled, and contain 24+ vitamins and minerals. Every meal provides adequate protein and is fortified with vitamins and minerals to help you manage your weight while nourishing your body. Medifast Meals are available in a wide variety of foods and flavors. Quick and easy to prepare, they offer a healthy alternative to a busy lifestyle!

Can I use Medifast Meals interchangeably?

One of the great benefits of Medifast Meals is that they may be used interchangeably, so you can choose any Medifast Meals you want - whatever you crave - each day.

Has the use of Medifast been researched?

Yes! Medifast is the brand recommended by over 20,000 doctors since 1980, and our clinical studies have proven time and time again that it works!

How does Medifast help sustain your weight-loss results?

Medifast won't abandon you the way fad diets have in the past. The Medifast Transition, Maintenance, and Exercise Plans pick up where the Medifast Achieve Plan ends, and teach you how to sustain your weight-loss results long term!


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Medifast, Inc., Health & Wellness, Owings Mills, MD HACKER SAFE certified sites prevent over 99.9% of hacker crime.Medifast makes no claim that these results are representative of all participants on the Medifast Program. Medifast recommends you consult with a physician before starting a weight-loss program. Medifast is the brand recommended by more than 20,000 doctors since 1980.

Davis, L.M., Coleman, C.D., Kiel, J., Rampolla, J., Hutchisen, T., Ford, L., Andersen, W.S., Hanlon-Mitola, A. (2010). Efficacy of a meal replacement diet compared to a food-based diet after a period of weight loss and weight maintenance: a randomized controlled trial. Nutrition Journal, 9(11). View Study