Medifast Diet Coupons & Promo Codes

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There are no in-store offers at this time. Please check back later.
$15Off code

$15 Off $150+


Get $15 off your first order of $150 or more. Limit one per customer. Excludes ready-to-drink shakes. Not valid with Medifast Advantage or any other promotions or discounts.
...P15 Get Promo Code
15%Off sale

15% Off 14 Day Trial


Save 15% off a 14 day trial kit to the Medifast Diet program. More Info » After the 14 day trial period you are able to cancel your plan if you are not satisfied with the program. To proceed with cancellation, login to your account and click the "Cancel Medifast Advantage" link. You may also cancel by calling Customer Service at 1-800-209-0878.
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Past Medifast Diet Coupon Codes

These Medifast Diet promo codes have expired but may still work.

$25Off code

$25 Off Orders Of $250+


Limit one per customer. Excludes ready-to-drink shakes. Not valid with Medifast Advantage®, or any other promotions or discounts.
...G25 Get Promo Code Expired 03/13/17
$15Off code

$15 Off $150+ Sitewide


Save $15 off $150 or more sitewide when you use this Medifast Diet promo code during checkout. Valid now through November 20th.
...K15 Get Promo Code Expired 11/20/16