<SEC-DOCUMENT>0001140361-14-024127.txt : 20140623
<SEC-HEADER>0001140361-14-024127.hdr.sgml : 20140623
<ACCEPTANCE-DATETIME>20140602165626
ACCESSION NUMBER:		0001140361-14-024127
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20140530
FILED AS OF DATE:		20140602
DATE AS OF CHANGE:		20140602

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DARLING INGREDIENTS INC.
		CENTRAL INDEX KEY:			0000916540
		STANDARD INDUSTRIAL CLASSIFICATION:	FATS & OILS [2070]
		IRS NUMBER:				362495346
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0507

	BUSINESS ADDRESS:	
		STREET 1:		251 O CONNOR RIDGE BLVD
		STREET 2:		STE 300
		CITY:			IRVING
		STATE:			TX
		ZIP:			75038
		BUSINESS PHONE:		9727170300

	MAIL ADDRESS:	
		STREET 1:		251 OCONNOR RIDGE BLVD
		STREET 2:		#300
		CITY:			IRVING
		STATE:			TX
		ZIP:			75038

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DARLING INTERNATIONAL INC
		DATE OF NAME CHANGE:	19931223

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			STUEWE RANDALL C
		CENTRAL INDEX KEY:			0001256109

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13323
		FILM NUMBER:		14884797
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2014-05-30</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000916540</issuerCik>
        <issuerName>DARLING INGREDIENTS INC.</issuerName>
        <issuerTradingSymbol>DAR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001256109</rptOwnerCik>
            <rptOwnerName>STUEWE RANDALL C</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>DARLING INGREDIENTS INC.</rptOwnerStreet1>
            <rptOwnerStreet2>251 O'CONNOR RIDGE BLVD., SUITE 300</rptOwnerStreet2>
            <rptOwnerCity>IRVING</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75038</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chairman and CEO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common stock</value>
            </securityTitle>
            <transactionDate>
                <value>2014-05-30</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>35703</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>20.0589</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>938649</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">This transaction was executed in multiple trades at prices ranging from $20.00 to $20.225; the price reported above reflects the weighted average sale price.  The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC staff, the issuer, or a security holder of the issuer.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Randall C. Stuewe</signatureName>
        <signatureDate>2014-06-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
