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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>UNITED STATES</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>SECURITIES AND EXCHANGE COMMISSION</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>Washington, D.C. 20549</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>FORM 8-K</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>CURRENT REPORT</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>Pursuant to Section 13 or 15(d) of</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>The Securities Exchange Act of 1934</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>Date of Report (Date of earliest event reported)
February 1, 2012</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>MEDIFAST, INC.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>(Exact name of registrant as specified in
its charter)</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 30%; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Delaware</TD>
    <TD STYLE="width: 5%">&nbsp;</TD>
    <TD STYLE="width: 30%; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">000-23016</TD>
    <TD STYLE="width: 5%">&nbsp;</TD>
    <TD STYLE="width: 30%; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">13-3714405</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-weight: bold; text-align: center">(State or other jurisdiction</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="font-weight: bold; text-align: center">(Commission File Number)</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="font-weight: bold; text-align: center">(IRS Employer</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-weight: bold; text-align: center">of incorporation or organization)</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="font-weight: bold; text-align: center">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="font-weight: bold; text-align: center">Ident. No.)</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 65%; padding-right: 5.4pt; padding-left: 5.4pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">11445 Cronhill Drive, Owing Mills, Maryland</TD>
    <TD STYLE="width: 5%">&nbsp;</TD>
    <TD STYLE="width: 30%; padding-right: 5.4pt; padding-left: 5.4pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">21117</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; font-weight: bold; text-align: center">(Address of principal executive offices)</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; font-weight: bold; text-align: center">(Zip Code)</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"><B>Registrant's telephone number, including
area code <U>(410)-581-8042</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/200% Times New Roman, Times, Serif; margin: 0 0 6pt">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:</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 7%"><FONT STYLE="font-family: Wingdings 2">&#163;</FONT></TD>
    <TD STYLE="width: 93%">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Wingdings 2">&#163;</FONT></TD>
    <TD>Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Wingdings 2">&#163;</FONT></TD>
    <TD>Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Wingdings 2">&#163;</FONT></TD>
    <TD>Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 6pt 0.25in">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0in"><B>Item 5.02(b) Departure
of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain
Officers</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">On February 1, 2012, the
Board of Directors of Medifast, Inc. elected to appoint Executive Chairman Michael C. MacDonald to the additional post of CEO,
effective as of February 8, 2012. This appointment coincides with the February 8, 2012 expiration of the employment contract of
the Company&rsquo;s current CEO, Michael S. McDevitt. In addition to departing as CEO, Mr. McDevitt will resign as a Director of
the Company effective February 8, 2012.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">A copy of the press release
dated February 2, 2012 announcing this transition is furnished herewith as Exhibit 99.1.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 16%; text-indent: 0in; font-weight: bold; text-align: justify">Item 9.01</TD>
    <TD STYLE="width: 84%; text-indent: 0in; font-weight: bold; text-align: justify">Financial Statements and Exhibits</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-indent: 0in; text-align: justify">&nbsp;</TD>
    <TD STYLE="text-indent: 0in; text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-indent: 0in; text-align: justify">(d) Exhibits</TD>
    <TD STYLE="text-indent: 0in; text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-indent: 0in; text-align: justify">&nbsp;</TD>
    <TD STYLE="text-indent: 0in; text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-indent: 0in; text-align: justify"><U>Exhibit No.</U></TD>
    <TD STYLE="text-indent: 0in; text-align: justify"><U>Description</U></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-indent: 0in; text-align: justify">99.1</TD>
    <TD STYLE="text-indent: 0in; text-align: justify">Press Release of Medifast, Inc., dated February 2, 2012.</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center; text-indent: 0in">SIGNATURES</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.5in">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.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 0in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 50%; text-indent: 0in">&nbsp;</TD>
    <TD STYLE="width: 35%; text-indent: 0in">MEDIFAST, INC.</TD>
    <TD STYLE="width: 15%">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-indent: 0in">Dated: February 2, 2012</TD>
    <TD STYLE="text-indent: 0in">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-indent: 0in">&nbsp;</TD>
    <TD STYLE="text-indent: 0in">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-indent: 0in">&nbsp;</TD>
    <TD STYLE="text-indent: 0in; border-bottom: Black 1pt solid">/s/ Brendan N. Connors</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-indent: 0in">&nbsp;</TD>
    <TD STYLE="text-indent: 0in">Brendan N. Connors</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-indent: 0in">&nbsp;</TD>
    <TD STYLE="text-indent: 0in">Chief Financial Officer</TD>
    <TD>&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 0in">&nbsp;</P>

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{"company-data": {"conformed-name": "MEDIFAST INC", "cik": "0000910329", "assigned-sic": "2090", "irs-number": "133714405", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-31573", "film-number": "12566290"}, "business-address": {"street1": "11445 CRONHILL DRIVE", "city": "OWINGS MILLS", "state": "MD", "zip": "21117", "phone": "7327640619"}, "mail-address": {"street1": "11445 CRONHILL DRIVE", "city": "OWINGS MILLS", "state": "MD", "zip": "21117"}, "former-company": [{"former-conformed-name": "HEALTHRITE INC", "date-changed": "19951120"}, {"former-conformed-name": "XX", "date-changed": "19950619"}, {"former-conformed-name": "00", "date-changed": "19950619"}]}
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)
February 1, 2012
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:
£
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
£
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
£
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
£
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Item 5.02(b) Departure
of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain
Officers
On February 1, 2012, the
Board of Directors of Medifast, Inc. elected to appoint Executive Chairman Michael C. MacDonald to the additional post of CEO,
effective as of February 8, 2012. This appointment coincides with the February 8, 2012 expiration of the employment contract of
the Company's current CEO, Michael S. McDevitt. In addition to departing as CEO, Mr. McDevitt will resign as a Director of
the Company effective February 8, 2012.
A copy of the press release
dated February 2, 2012 announcing this transition is furnished herewith as Exhibit 99.1.
Item 9.01
Financial Statements and Exhibits
(d) Exhibits
Exhibit No.
Description
99.1
Press Release of Medifast, Inc., dated February 2, 2012.
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: February 2, 2012
/s/ Brendan N. Connors
Brendan N. Connors
Chief Financial Officer