<SEC-DOCUMENT>0001020859-18-000068.txt : 20180918
<SEC-HEADER>0001020859-18-000068.hdr.sgml : 20180918
<ACCEPTANCE-DATETIME>20180918164929
ACCESSION NUMBER:		0001020859-18-000068
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180915
FILED AS OF DATE:		20180918
DATE AS OF CHANGE:		20180918

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Benedict Danielle
		CENTRAL INDEX KEY:			0001682963

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15723
		FILM NUMBER:		181076214

	MAIL ADDRESS:	
		STREET 1:		313 IRON HORSE WAY
		CITY:			PROVIDENCE
		STATE:			RI
		ZIP:			02908

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			UNITED NATURAL FOODS INC
		CENTRAL INDEX KEY:			0001020859
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-GROCERIES & GENERAL LINE [5141]
		IRS NUMBER:				050376157
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0730

	BUSINESS ADDRESS:	
		STREET 1:		313 IRON HORSE WAY
		CITY:			PROVIDENCE
		STATE:			RI
		ZIP:			02908
		BUSINESS PHONE:		401-528-8634

	MAIL ADDRESS:	
		STREET 1:		313 IRON HORSE WAY
		CITY:			PROVIDENCE
		STATE:			RI
		ZIP:			02908
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_153730375243012.xml
<DESCRIPTION>FORM 4
<TEXT>
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    <periodOfReport>2018-09-15</periodOfReport>

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        <issuerCik>0001020859</issuerCik>
        <issuerName>UNITED NATURAL FOODS INC</issuerName>
        <issuerTradingSymbol>UNFI</issuerTradingSymbol>
    </issuer>

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            <rptOwnerName>Benedict Danielle</rptOwnerName>
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            <rptOwnerStreet1>C/O UNITED NATURAL FOODS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>313 IRON HORSE WAY</rptOwnerStreet2>
            <rptOwnerCity>PROVIDENCE</rptOwnerCity>
            <rptOwnerState>RI</rptOwnerState>
            <rptOwnerZipCode>02908</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Human Resource Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

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                <transactionPricePerShare>
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                <sharesOwnedFollowingTransaction>
                    <value>5774</value>
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                <directOrIndirectOwnership>
                    <value>D</value>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
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                <value>2018-09-17</value>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
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                <transactionShares>
                    <value>208</value>
                </transactionShares>
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                <transactionAcquiredDisposedCode>
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                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
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            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>16</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
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    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
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            <transactionAmounts>
                <transactionShares>
                    <value>1090</value>
                </transactionShares>
                <transactionPricePerShare>
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            <expirationDate>
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            <underlyingSecurity>
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                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
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                </sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
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    <footnotes>
        <footnote id="F1">On September 15, 2018, 1,090 shares of United Natural Foods, Inc. (the &quot;Company&quot;) performance stock units vested. The Company retained 325 shares on that date to satisfy certain tax withholding obligations in connection with the vesting.</footnote>
        <footnote id="F2">Restricted stock units convert into common stock on a one-for-one basis. Accordingly, there was no purchase price paid by the reporting person.</footnote>
        <footnote id="F3">On September 15, 2018, 1,085 shares of United Natural Foods, Inc. (the &quot;Company&quot;) restricted stock units vested. The Company retained 330 shares on that date to satisfy certain tax withholding obligations in connection with the vesting.</footnote>
        <footnote id="F4">On September 17, 2018, 682 shares of United Natural Foods, Inc. (the &quot;Company&quot;) performance stock units vested. The Company retained 208 shares on that date to satisfy certain tax withholding obligations in connection with the vesting.</footnote>
        <footnote id="F5">Includes 16 shares of common stock allocated to the reporting person under the United Natural Foods, Inc. 401(k) Plan's UNFI Stock Fund as of September 14, 2018.</footnote>
        <footnote id="F6">Each restricted stock unit represents the right to receive one share of United Natural Foods, Inc. common stock upon vesting in accordance with the terms of the reporting person's restricted stock unit agreement.</footnote>
        <footnote id="F7">The restricted stock units vest in four equal annual installments beginning on the first anniversary of the date of grant.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Joseph McGrail, Power-of-Attorney, in fact</signatureName>
        <signatureDate>2018-09-18</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</DOCUMENT>
</SEC-DOCUMENT>
