<?xml version="1.0"?><ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType><periodOfReport>2003-01-14</periodOfReport><notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000055067</issuerCik>
        <issuerName>KELLOGG CO</issuerName>
        <issuerTradingSymbol>K</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001197921</rptOwnerCik>
            <rptOwnerName>KELLOGG W K FOUNDATION TRUST</rptOwnerName>
        </reportingOwnerId>
<reportingOwnerAddress><rptOwnerStreet1>The Bank of New York</rptOwnerStreet1><rptOwnerStreet2>One Wall Street - 19th Floor</rptOwnerStreet2><rptOwnerCity>New York</rptOwnerCity><rptOwnerState>NY</rptOwnerState><rptOwnerZipCode>10286</rptOwnerZipCode></reportingOwnerAddress><reportingOwnerRelationship><isDirector>0</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>1</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001197916</rptOwnerCik>
            <rptOwnerName>KELLOGG W K FOUNDATION</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE MICHIGAN AVENUE EAST</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BATTLE CREEK</rptOwnerCity>
            <rptOwnerState>MI</rptOwnerState>
            <rptOwnerZipCode>49017-4058</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>0</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>1</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-01-14</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>S</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>179000</value></transactionShares><transactionPricePerShare><value>38.0626</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>123814940</value><footnoteId id="F1"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value><footnoteId id="F1"/></directOrIndirectOwnership></ownershipNature></nonDerivativeTransaction><nonDerivativeHolding><securityTitle><value>Common Stock</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>721920</value><footnoteId id="F2"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value><footnoteId id="F2"/></directOrIndirectOwnership><natureOfOwnership><value>See Foot Note</value><footnoteId id="F2"/></natureOfOwnership></ownershipNature></nonDerivativeHolding></nonDerivativeTable><footnotes><footnote id="F1">123,814,940 shares are owned by the W.K. Kellogg Foundation Trust (the "Trust") of which Jonathan T. Walton, William C. Richardson, Carlos M. Gutierrez, and The Bank of New York are Trustees and the W.K. Kellogg Foundation (the "Foundation") is the sole benficiary.</footnote><footnote id="F2">721,920 shares are owned by the Carrie Staines Kellogg Trust #5977 of which the Foundation is currently a beneficiary.</footnote></footnotes><ownerSignature><signatureName>Ann Daly Jocelyn, Vice President, The Bank of New York, as Corporate Trustee of the W.K. Kellogg Foundation Trust, and signing for the W.K. Kellogg Foundation pursuant to a power of attorney dated 11/26/03.</signatureName><signatureDate>2003-01-15</signatureDate></ownerSignature></ownershipDocument>



