-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 HQHX7sJ+2PxEtWOZR8z4/RJN1Qa72x8TIJPjrXvKhS6z4+LxezycuLhERH/xMXdi
 jZ8UWd2mCaq7LKqNRlcTVg==

<SEC-DOCUMENT>0001181431-03-011468.txt : 20030624
<SEC-HEADER>0001181431-03-011468.hdr.sgml : 20030624
<ACCEPTANCE-DATETIME>20030624115855
ACCESSION NUMBER:		0001181431-03-011468
CONFORMED SUBMISSION TYPE:	3/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030507
FILED AS OF DATE:		20030624

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BOURGOYNE JEFFREY P
		CENTRAL INDEX KEY:			0001106547

	FILING VALUES:
		FORM TYPE:		3/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-24657
		FILM NUMBER:		03754462

	BUSINESS ADDRESS:	
		STREET 1:		600 S ROYAL LANE
		STREET 2:		SUITE 200
		CITY:			COPPELL
		STATE:			TX
		ZIP:			75019

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MANNATECH INC
		CENTRAL INDEX KEY:			0001056358
		STANDARD INDUSTRIAL CLASSIFICATION:	MEDICINAL CHEMICALS & BOTANICAL PRODUCTS [2833]
		IRS NUMBER:				752508900
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		600 SOUTH ROYAL LANE
		STREET 2:		SUITE 200
		CITY:			COPPELL
		STATE:			TX
		ZIP:			75019
		BUSINESS PHONE:		9724717400

	MAIL ADDRESS:	
		STREET 1:		600 SOUTH ROYAL LANE
		STREET 2:		SUITE 200
		CITY:			COPPELL
		STATE:			TX
		ZIP:			75019
</SEC-HEADER>
<DOCUMENT>
<TYPE>3/A
<SEQUENCE>1
<FILENAME>rrd11602.xml
<DESCRIPTION>AMENDED FORM 3
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0101</schemaVersion>

    <documentType>3/A</documentType>
<periodOfReport>2003-05-07</periodOfReport>
<dateOfOriginalSubmission>2003-05-07</dateOfOriginalSubmission>
    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001056358</issuerCik>
        <issuerName>MANNATECH INC</issuerName>
        <issuerTradingSymbol>MTEX</issuerTradingSymbol></issuer>
<reportingOwner>
<reportingOwnerId>
            <rptOwnerCik>0001106547</rptOwnerCik>
            <rptOwnerName>BOURGOYNE JEFFREY P</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>0</isDirector>
<isOfficer>1</isOfficer>
<isTenPercentOwner>0</isTenPercentOwner>
<isOther>0</isOther>
<officerTitle>Sr. VP Supply Chain/Assoc Care</officerTitle>
<otherText></otherText></reportingOwnerRelationship></reportingOwner>
<derivativeSecurity>
<securityTitle>
<value>Right to buy common stock, $0.0001 par value</value></securityTitle>
<conversionOrExercisePrice>
<value>1.35</value></conversionOrExercisePrice>
<exerciseDate>
<value>1998-05-14</value></exerciseDate>
<expirationDate>
<value>2007-05-14</value></expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Common Stock</value></underlyingSecurityTitle>
<underlyingSecurityShares>
<value>7000</value></underlyingSecurityShares></underlyingSecurity>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value>
<footnoteId id="F1"/></directOrIndirectOwnership>
<natureOfOwnership>
<value></value></natureOfOwnership></ownershipNature></derivativeSecurity>
<derivativeSecurity>
<securityTitle>
<value>Right to buy common stock, $0.0001 par value</value></securityTitle>
<conversionOrExercisePrice>
<value>8.00</value></conversionOrExercisePrice>
<exerciseDate>
<value>2000-10-17</value></exerciseDate>
<expirationDate>
<value>2009-10-17</value></expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Common Stock</value></underlyingSecurityTitle>
<underlyingSecurityShares>
<value>86000</value></underlyingSecurityShares></underlyingSecurity>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value></directOrIndirectOwnership>
<natureOfOwnership>
<value></value></natureOfOwnership></ownershipNature></derivativeSecurity>
<derivativeSecurity>
<securityTitle>
<value>Right to buy common stock, $0.0001 par value</value></securityTitle>
<conversionOrExercisePrice>
<value>2.63</value></conversionOrExercisePrice>
<exerciseDate>
<value>2001-08-23</value></exerciseDate>
<expirationDate>
<value>2010-08-23</value></expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Common Stock</value></underlyingSecurityTitle>
<underlyingSecurityShares>
<value>50000</value></underlyingSecurityShares></underlyingSecurity>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value></directOrIndirectOwnership>
<natureOfOwnership>
<value></value></natureOfOwnership></ownershipNature></derivativeSecurity>
<footnotes>
<footnote id="F1">The original Form 3, filed on 5/07/03 incorrectly reported Mr. Bourgoyne as owning 7,000 shares when in fact Mr. Bourgoyne currently owns no Mannatech common stock.</footnote></footnotes>
<ownerSignature>
<signatureName>/s/ Jeffrey P. Bourgoyne</signatureName>
<signatureDate>2003-05-07</signatureDate></ownerSignature></ownershipDocument>


</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----