Product & Plan FAQs

Soy, Fiber, Dairy, Whey

What type of soy is in Medifast?
Medifast uses Supro® brand soy protein, a high-quality complete protein derived from soybeans. Supro® is produced by The Solae Company. The Solae Company has been conducting soy protein research for more than 30 years.
What are the benefits of soy?

Not only is soy protein a source of high-quality protein, it is thought to play both a preventative and therapeutic role in the following:

  • Studies show naturally occurring isoflavones (such as those in Supro® brand soy protein) have increased the mineral content and density of bones, which may protect against the risk of bone fractures and osteoporosis.
  • Studies have indicated that a regular intake of soy foods may help to prevent hormone-related cancers such as breast cancer, prostate cancer, and colon cancer.
  • Soy works to lower LDL cholesterol (bad cholesterol) levels in the blood. Reductions in LDL cholesterol have been shown to help decrease the risk for heart disease.
  • Soy may reduce triglyceride levels and increases HDL cholesterol levels (good cholesterol), which further reduces the risk of heart disease.
  • Soy isoflavones, which are a natural phytoestrogen source, may help reduce menopausal symptoms such as hot flashes or night sweats.
  • Soy is a complete protein, providing all of the essential amino acids.
How much fiber do Medifast Meals contain?
Medifast Meals contain 3-6 grams of dietary fiber (with the average Medifast Meal providing approximately 4-5 grams),depending on which Meals you choose. You'll also get fiber from the "Green" portion of your Lean & Green Meal. For the amount of fiber in specific Medifast Meals, please refer to our Product Nutrition Quick Profile (PDF).
Which Medifast products do not contain soy?
Please refer to our Allergen/Dietary Information sheet (PDF).
Which Medifast products do not contain dairy?
Please refer to our Allergen/Dietary Information sheet (PDF).
Which Medifast products do not contain whey?
Please refer to our Allergen/Dietary Information sheet (PDF).
Which Medifast products are lactose-free?
Please refer to our Allergen/Dietary Information sheet (PDF).
How much soy do Medifast Meals contain?
Please refer to our Allergen/Dietary Information sheet (PDF).
How much gluten do Medifast Meals contain?
Please refer to our Allergen/Dietary Information sheet (PDF).
Does Medifast carry kosher products?
The majority of Medifast products are certified kosher by The Orthodox Union of New York. For specific information, refer to our complete list of Kosher Products (PDF).

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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. Individual results will vary. Medifast is the brand recommended by more than 20,000 doctors since 1980. Typical weight loss on the Medifast 5 & 1 Plan® is 2-5 lbs per week for the first two weeks and 1-2 lbs per week thereafter.

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