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

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

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

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

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

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

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

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Date of Report (Date of earliest event
reported) May 29, 2012</B></P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 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: 0pt 0"><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: 30%; padding-right: 5.4pt; padding-left: 5.4pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Delaware</TD>
    <TD STYLE="width: 5%; padding-right: 5.4pt; padding-left: 5.4pt; font-weight: bold; text-align: center">&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">000-23016</TD>
    <TD STYLE="width: 5%; padding-right: 5.4pt; padding-left: 5.4pt; font-weight: bold; text-align: center">&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">13-3714405</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; tab-stops: center 3.0in right 6.0in; font-weight: bold; text-align: center">(State or other jurisdiction</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; tab-stops: center 3.0in right 6.0in; font-weight: bold; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; tab-stops: center 3.0in right 6.0in; font-weight: bold; text-align: center">(Commission File Number)</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; tab-stops: center 3.0in right 6.0in; font-weight: bold; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; tab-stops: center 3.0in right 6.0in; font-weight: bold; text-align: center">(IRS Employer</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; font-weight: bold; text-align: center">of incorporation or organization)</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; font-weight: bold; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; font-weight: bold; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; font-weight: bold; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; font-weight: bold; text-align: center">Ident. No.)</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><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; text-align: center; border-bottom: Black 1pt solid">11445 Cronhill Drive, Owing Mills, Maryland</TD>
    <TD STYLE="width: 5%; padding-right: 5.4pt; padding-left: 5.4pt"><B>&nbsp;</B></TD>
    <TD STYLE="width: 30%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; border-bottom: Black 1pt solid"><B>21117</B>.</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 STYLE="padding-right: 5.4pt; padding-left: 5.4pt; font-weight: bold; text-align: center">&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: 0pt 0"><B>&nbsp;</B></P>

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

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

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

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

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

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 22.5pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT>&nbsp;&nbsp; Written communications
pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 22.5pt">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 22.5pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT>&nbsp;&nbsp; Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 22.5pt">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 22.5pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT>&nbsp;&nbsp; Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 22.5pt">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 22.5pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT>&nbsp;&nbsp; Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Item 8.01 Other Events</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">The Board of Directors of Medifast, Inc. has authorized the
repurchase of up to 1,000,000 shares of the Company&rsquo;s common stock as approved by the Board on May 29, 2012. The authorization
remains open for a period of 24 months ending on May 29, 2014. This authorization is in addition to previously reported share repurchase
authorizations on May 18, 2011 and on July 21, 2011. There are 125,000 shares remaining available for repurchase under the 2011
repurchase authorizations.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Stock repurchases under this program may be made by the Broker
through open market and privately negotiated transactions at times and in such amounts as management deemed appropriate pursuant
to Rule 10b-18 of the Exchange Act. The timing and actual number of shares repurchased will depend on a variety of factors including
price, corporate authorization provisions, above noted regulatory requirements, and other market conditions.</P>

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

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

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

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

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 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: 0pt 0; text-indent: 0in">&nbsp;</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: 10%; text-indent: 0in">&nbsp;</TD>
    <TD STYLE="width: 9%; text-indent: 0in">&nbsp;</TD>
    <TD STYLE="width: 28%; text-indent: 0in">&nbsp;</TD>
    <TD STYLE="width: 9%">&nbsp;</TD>
    <TD STYLE="width: 25%; text-indent: 0in">MEDIFAST, INC.</TD>
    <TD STYLE="width: 19%">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-indent: 0in">&nbsp;</TD>
    <TD STYLE="text-indent: 0in">&nbsp;</TD>
    <TD STYLE="text-indent: 0in">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-indent: 0in">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="text-indent: 0in">Dated:&nbsp; June 6, 2012</TD>
    <TD STYLE="text-indent: 0in">&nbsp;</TD>
    <TD>&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">&nbsp;</TD>
    <TD STYLE="text-indent: 0in">&nbsp;</TD>
    <TD>&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">&nbsp;</TD>
    <TD STYLE="text-indent: 0in">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-indent: 0in; border-bottom: Black 1pt solid">/s/&nbsp; 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">&nbsp;</TD>
    <TD STYLE="text-indent: 0in">&nbsp;</TD>
    <TD>&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">&nbsp;</TD>
    <TD STYLE="text-indent: 0in">&nbsp;</TD>
    <TD>&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: 0pt 0; text-indent: 0in">&nbsp;&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": "12892354"}, "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) May 29, 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 8.01 Other Events
The Board of Directors of Medifast, Inc. has authorized the
repurchase of up to 1,000,000 shares of the Company's common stock as approved by the Board on May 29, 2012. The authorization
remains open for a period of 24 months ending on May 29, 2014. This authorization is in addition to previously reported share repurchase
authorizations on May 18, 2011 and on July 21, 2011. There are 125,000 shares remaining available for repurchase under the 2011
repurchase authorizations.
Stock repurchases under this program may be made by the Broker
through open market and privately negotiated transactions at times and in such amounts as management deemed appropriate pursuant
to Rule 10b-18 of the Exchange Act. The timing and actual number of shares repurchased will depend on a variety of factors including
price, corporate authorization provisions, above noted regulatory requirements, and other market conditions.
2
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:  June 6, 2012
/s/  Brendan N. Connors
Brendan N. Connors
Chief Financial Officer
3