-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 PagpWQbN3Ruzn0BgOmBPCdpjXPuJWBZtCkY/ALX4Hu+W49PimQzS+mujeYP28L+Y
 hGX+xDQ3CdGD+44AIPrV0A==

<SEC-DOCUMENT>0001181431-09-058286.txt : 20091222
<SEC-HEADER>0001181431-09-058286.hdr.sgml : 20091222
<ACCEPTANCE-DATETIME>20091222170959
ACCESSION NUMBER:		0001181431-09-058286
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20090210
FILED AS OF DATE:		20091222
DATE AS OF CHANGE:		20091222

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Mead Johnson Nutrition Co
		CENTRAL INDEX KEY:			0001452575
		STANDARD INDUSTRIAL CLASSIFICATION:	FOOD & KINDRED PRODUCTS [2000]
		IRS NUMBER:				800318351
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2400 WEST LLOYD EXPRESSWAY
		CITY:			EVANSVILLE
		STATE:			IN
		ZIP:			47721-0001
		BUSINESS PHONE:		8124295000

	MAIL ADDRESS:	
		STREET 1:		2400 WEST LLOYD EXPRESSWAY
		CITY:			EVANSVILLE
		STATE:			IN
		ZIP:			47721-0001

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BRISTOL MYERS SQUIBB CO
		CENTRAL INDEX KEY:			0000014272
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34251
		FILM NUMBER:		091255850

	BUSINESS ADDRESS:	
		STREET 1:		345 PARK AVE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10154
		BUSINESS PHONE:		2125464000

	MAIL ADDRESS:	
		STREET 1:		345 PARK AVE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10154

	FORMER NAME:	
		FORMER CONFORMED NAME:	BRISTOL MYERS CO
		DATE OF NAME CHANGE:	19891012
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>rrd260710.xml
<DESCRIPTION>FORM 3
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0203</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2009-02-10</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001452575</issuerCik>
        <issuerName>Mead Johnson Nutrition Co</issuerName>
        <issuerTradingSymbol>MJN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000014272</rptOwnerCik>
            <rptOwnerName>BRISTOL MYERS SQUIBB CO</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>345 PARK AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10154</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>42344571</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Class B Common Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>127655429</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By E.R. Squibb &amp; Sons, L.L.C.</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The Class B Common Stock is convertible into Class A Common Stock at any time on a one-for-one basis and has no exercise or conversion price or expiration date.</footnote>
        <footnote id="F2">The reported securities are owned directly by E.R. Squibb &amp; Sons, L.L.C., which is a wholly-owned subsidiary of Bristol-Myers Squibb Company. Bristol-Myers Squibb Company is an indirect beneficial owner of the reported securities.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Sonia Vora, Assistant Corporate Secretary for Bristol-Myers Squibb Company</signatureName>
        <signatureDate>2009-12-22</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----