In order to use the Medifast Coupons discount codes, people must first search for the Coupons For Zipcodes online site. There are many discounts for products, meal plans, promotional coupons, and promotional code savings on this site. Next, search for Medifast diet. The search will bring forth a list of Medifast diet discount codes. Browse through them before selecting a product coupon. Then, click on the desired coupon to copy, which automatically takes you to the online store. Select from a list of categories, whether the member is a male, female, diabetic, gluten-free, or vegetarian. Choose a package to make your purchase. Type in or paste in the coupon code. Then, click on the Apply Coupon Code button to get your discount. Notice the decrease in your purchase amount. Print out a copy of the screen to keep as a receipt. Google also provides a long list of Medifast Coupons discounts, when you search “Medifast Coupons” and “Medifast Coupons Codes.”