<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2014-08-15</periodOfReport>

    <dateOfOriginalSubmission>2014-08-19</dateOfOriginalSubmission>

    <issuer>
        <issuerCik>0001273385</issuerCik>
        <issuerName>Nutrastar International Inc.</issuerName>
        <issuerTradingSymbol>NUIN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001454707</rptOwnerCik>
            <rptOwnerName>NGAN HENRY</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>4/F YUSHAN PLAZA, 51 YUSHAN ROAD</rptOwnerStreet1>
            <rptOwnerStreet2>NANGANG DISTRICT</rptOwnerStreet2>
            <rptOwnerCity>HARBIN</rptOwnerCity>
            <rptOwnerState>F4</rptOwnerState>
            <rptOwnerZipCode>150090</rptOwnerZipCode>
            <rptOwnerStateDescription>CHINA</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $0.001 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2014-08-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>40000</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>115000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Granted pursuant to a Restricted Shares Grant Agreement under the Issuer's 2009 Equity Incentive Plan, as amended, dated August 15, 2014, between the Issuer and the Reporting Person.</footnote>
        <footnote id="F2">The shares vest in equal installments on a semi-annual basis over a two-year period beginning on February 15, 2015.</footnote>
    </footnotes>

    <remarks>The Form 4, as originally filed, incorrectly reported the address of the Reporting Person.  The Form 4, as amended by this Form 4/A, correctly reports such information.</remarks>

    <ownerSignature>
        <signatureName>/s/ Henry Ngan</signatureName>
        <signatureDate>2014-08-21</signatureDate>
    </ownerSignature>
</ownershipDocument>
