UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C.  20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of
The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported) January 25, 2010

MEDIFAST, INC.
(Exact name of registrant as specified in its charter)

Delaware
  
000-23016
  
13-3714405
(State or other jurisdiction
  
(Commission File Number)
  
(IRS Employer
of incorporation or organization)
      
Ident. No.)

11445 Cronhill Drive, Owing Mills, Maryland
  
  21117
(Address of principal executive offices)
  
 (Zip Code)

Registrant's telephone number, including area code (410)-581-8042


Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
 
o   Written communications pursuant to Rule 425 under the Securities Act (17 CFR    230.425)

o   Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o   Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR   240.14d-2(b))

o   Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
 

Item 7.01 
Regulation FD Disclosure

The following information is furnished under “Item 7.01. Regulation FD Disclosure” and “Item 2.02. Disclosure of Results of Operations and Financial Condition.”

On January 25, 2010, Medifast, Inc. (“Medifast”) issued a press release announcing unaudited fourth quarter and full year-end financial results for the period ended December 31, 2009. A copy of Medifast’s press release is attached hereto as Exhibit 99.1 and hereby incorporated by reference.


Item 9.01
Exhibits

Exhibits pursuant to Item 7.01

99.1       Press release dated January 25, 2010, announcing unaudited fourth quarter and year-end 2009 financial results.
 
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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
 
     
    MEDIFAST, INC.  
       
Dated:  January 25, 2010
 
 /s/ Michael S. McDevitt  
    Michael S. McDevitt  
    Chief Executive Officer  
 
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