<SEC-DOCUMENT>0001562180-24-002242.txt : 20240305
<SEC-HEADER>0001562180-24-002242.hdr.sgml : 20240305
<ACCEPTANCE-DATETIME>20240305160549
ACCESSION NUMBER:		0001562180-24-002242
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20240301
FILED AS OF DATE:		20240305
DATE AS OF CHANGE:		20240305

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			McAlary Ileana
		CENTRAL INDEX KEY:			0001892902
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-31127
		FILM NUMBER:		24720282

	MAIL ADDRESS:	
		STREET 1:		850 76TH STREET SW
		CITY:			GRAND RAPIDS
		STATE:			MI
		ZIP:			49518

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SpartanNash Co
		CENTRAL INDEX KEY:			0000877422
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-GROCERIES & GENERAL LINE [5141]
		ORGANIZATION NAME:           	07 Trade & Services
		IRS NUMBER:				380593940
		STATE OF INCORPORATION:			MI
		FISCAL YEAR END:			1230

	BUSINESS ADDRESS:	
		STREET 1:		850 76TH ST SW
		STREET 2:		P O BOX 8700
		CITY:			GRAND RAPIDS
		STATE:			MI
		ZIP:			49518
		BUSINESS PHONE:		6168782000

	MAIL ADDRESS:	
		STREET 1:		850 76TH ST SW
		STREET 2:		PO BOX 8700
		CITY:			GRAND RAPIDS
		STATE:			MI
		ZIP:			49518

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SPARTAN STORES INC
		DATE OF NAME CHANGE:	19930328
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primarydocument.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2024-03-01</periodOfReport>

    <notSubjectToSection16>false</notSubjectToSection16>

    <issuer>
        <issuerCik>0000877422</issuerCik>
        <issuerName>SpartanNash Co</issuerName>
        <issuerTradingSymbol>SPTN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001892902</rptOwnerCik>
            <rptOwnerName>McAlary Ileana</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>850 76TH STREET SW</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>GRAND RAPIDS</rptOwnerCity>
            <rptOwnerState>MI</rptOwnerState>
            <rptOwnerZipCode>49518</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>EVP CLO and Secretary</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>false</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2024-03-01</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>851.00</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>20.77</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>9593.00</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2024-03-01</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>976.00</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>20.77</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8617.00</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">These shares were withheld by SpartanNash Company to satisfy tax withholding obligations in connection with the vesting of shares of restricted stock, the grant of which was previously reported.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Ileana McAlary</signatureName>
        <signatureDate>2024-03-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
