For questions not covered on our website, call our Contact Center at (800) 209-0878 for more information and to place orders.
Weekdays 8:00 a.m. to 11:00 p.m. Eastern
Weekends 9:00 a.m. to 6:00 p.m. Eastern
Please fill out the form below. For time sensitive issues involving your order, please call our Contact Center at (800) 209-0878.
We strive to answer all emails within 1-2 business days. Please allow 1-2 business days - excluding weekends and holidays - to respond to your email. Please make sure you can receive response emails from medifastdiet.com and choosemedifast.com.
Sorry, this doesn’t look like a valid email.
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.
Shikany, J. M., A. S. Thomas, T. M. Beasley, C. E. Lewis and D. B. Allison (2013). "Randomized controlled trial of the Medifast 5 & 1 Plan for weight loss." Int J Obes (Lond) 37(12): 1571-1578. View Study