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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 AUQBH2ohF7GATFmriK1QLJTPKU74Ep2iQg5CmGwlav3F4FpvuLx1P1rRTuSB4AAq
 pI3dSmgPx+i1qfhm77qFPw==

<SEC-DOCUMENT>0001181431-03-014547.txt : 20030718
<SEC-HEADER>0001181431-03-014547.hdr.sgml : 20030718
<ACCEPTANCE-DATETIME>20030718171505
ACCESSION NUMBER:		0001181431-03-014547
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030717
FILED AS OF DATE:		20030718

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ZIMMERMAN MARK
		CENTRAL INDEX KEY:			0001192565

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-15701
		FILM NUMBER:		03793498

	MAIL ADDRESS:	
		STREET 1:		1185 LINDA VISTA DR
		CITY:			SAN MARCOS
		STATE:			CA
		ZIP:			92069

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NATURAL ALTERNATIVES INTERNATIONAL INC
		CENTRAL INDEX KEY:			0000787253
		STANDARD INDUSTRIAL CLASSIFICATION:	MEDICINAL CHEMICALS & BOTANICAL PRODUCTS [2833]
		IRS NUMBER:				841007839
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	BUSINESS ADDRESS:	
		STREET 1:		1185 LINDA VISTA DR
		CITY:			SAN MARCOS
		STATE:			CA
		ZIP:			92069
		BUSINESS PHONE:		6197447340

	MAIL ADDRESS:	
		STREET 1:		1185 LINDA VISTA DRIVE
		CITY:			SAN MARCOS
		STATE:			CA
		ZIP:			92069

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AMERICAN ACQUISITIONS INC
		DATE OF NAME CHANGE:	19860929
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd13420.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0101</schemaVersion>

    <documentType>4</documentType>
<periodOfReport>2003-07-17</periodOfReport>
<notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000787253</issuerCik>
        <issuerName>NATURAL ALTERNATIVES INTERNATIONAL INC</issuerName>
        <issuerTradingSymbol>NAII</issuerTradingSymbol></issuer>
<reportingOwner>
<reportingOwnerId>
            <rptOwnerCik>0001192565</rptOwnerCik>
            <rptOwnerName>ZIMMERMAN MARK</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>VP, Operations</officerTitle>
<otherText></otherText></reportingOwnerRelationship></reportingOwner>
<nonDerivativeSecurity>
<securityTitle>
<value>Common Stock</value></securityTitle>
<transactionDate>
<value>2003-07-17</value></transactionDate>
<transactionCoding>
<transactionFormType>4</transactionFormType>
<transactionCode>P</transactionCode>
<equitySwapInvolved>0</equitySwapInvolved>
<footnoteId id="F1"/></transactionCoding>
<transactionTimeliness>
<value></value></transactionTimeliness>
<transactionAmounts>
<transactionShares>
<value>446</value></transactionShares>
<transactionValue>
<value>3.36</value></transactionValue>
<transactionAcquiredDisposedCode>
<value>A</value></transactionAcquiredDisposedCode></transactionAmounts>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value>446</value></sharesOwnedFollowingTransaction></postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value></directOrIndirectOwnership>
<natureOfOwnership>
<value></value></natureOfOwnership></ownershipNature></nonDerivativeSecurity>
<derivativeSecurity>
<securityTitle>
<value>Employee (non-qualified) Stock Options (right to buy)</value></securityTitle>
<conversionOrExercisePrice>
<value>1.80</value></conversionOrExercisePrice>
<transactionDate>
<value>2002-05-31</value></transactionDate>
<transactionCoding>
<transactionFormType>5</transactionFormType>
<transactionCode>J</transactionCode>
<equitySwapInvolved>0</equitySwapInvolved>
<footnoteId id="F3"/></transactionCoding>
<transactionAmounts>
<transactionShares>
<value>30000</value></transactionShares>
<transactionValue>
<value>1.80</value></transactionValue>
<transactionAcquiredDisposedCode>
<value>A</value></transactionAcquiredDisposedCode></transactionAmounts>
<exerciseDate>
<value>2003-05-31</value>
<footnoteId id="F2"/></exerciseDate>
<expirationDate>
<value>2007-05-30</value></expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Common Stock</value></underlyingSecurityTitle>
<underlyingSecurityShares>
<value>30000</value></underlyingSecurityShares></underlyingSecurity>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value>30000</value></sharesOwnedFollowingTransaction></postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value></directOrIndirectOwnership>
<natureOfOwnership>
<value></value></natureOfOwnership></ownershipNature></derivativeSecurity>
<footnotes>
<footnote id="F1">Employee stock purchase plan transaction</footnote>
<footnote id="F2">The securities vest in three equal annual installments, with the first installment vesting on 5/31/2003.</footnote>
<footnote id="F3">This stock options was disclosed on a previous Form 4 and is being disclosed for information purposes only.</footnote></footnotes>
<ownerSignature>
<signatureName>Mark Zimmerman</signatureName>
<signatureDate>2003-07-18</signatureDate></ownerSignature></ownershipDocument>


</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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