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<div class="HwContainer HwElement" id="HwContainer"><a class="HwMainSkipNavigation" href="#HwContentTitle"><span class="HwAccessibilityText">Skip Navigation</span></a><div class="HwBlock" id="HwMain" role="main"><div class="HwRow"><div class="HwColumn" id="HwColumnSidebar1"><div class="HwCustom" id="HwCustomSidebar"> </div></div><div class="HwColumn" id="HwColumnContent"><div id="HwContentTop"> </div><div class="HwTypeFocus HwContentWrapper HwElement" role="article" id="HwContentWrapper"><div class="HwCustom" id="HwCustomContentTop"> </div><div class="HwContentHeader"><p><a name="top" id="Hwtop"><span class="HwAccessibilityText">Top of the page</span></a> </p></div><div class="HwContentTitle"><h1 id="HwContentTitle" tabindex="-1">Cow's Milk Sensitivity in Babies</h1></div><div class="HwContentTopNavigation"> </div><div class="HwContent"><div class="HwNavigationSection HwSectionSpecialSection" id="sec-aa106616-sec"><h2 class="HwSectionTitle" fingerprint="421b88ad" fingerprint-exact="1b206d13">Topic Overview</h2><p fingerprint="857b9698" fingerprint-exact="7cc60958">If you drink cow's milk or eat dairy products that contain cow's milk while <span class="HwOptionalAny"><a class="HwLinkDefinition" data-hw-type="Definition" data-hw-document-href="ue5257" data-hw-section="ue5257-sec" rel="Definition" hw:document-type="Definition" hw:document-href="ue5257" data-hwid="ue5257" hw:section-href="ue5257-sec" href="?id=ue5257#ue5257-sec"><span class="HwLinkText">breastfeeding</span></a></span>, the milk protein and sugars are passed on to your baby. Protein and sugars from cow's milk are also ingredients in most formulas. Some babies are sensitive to these proteins and sugars.</p> <h3 class="HwSubSectionTitle" fingerprint="eb73d2ba" fingerprint-exact="92272fa2">Cow's milk protein sensitivity</h3> <p fingerprint="653f3db1" fingerprint-exact="0d892981">Normally, milk protein poses no problems to a baby's health or digestive system. But a small number of babies have reactions to a protein found in cow's milk. Signs of cow's milk protein sensitivity or intolerance include:</p> <ul fingerprint="bbc534fb" fingerprint-exact="b348c29b"> <li><a class="HwLinkDefinition" data-hw-type="Definition" data-hw-document-href="sth149889" data-hw-section="sth149889-sec" rel="Definition" hw:document-type="Definition" hw:document-href="sth149889" data-hwid="sth149889" hw:section-href="sth149889-sec" href="?id=sth149889#sth149889-sec"><span class="HwLinkText">Hives</span></a>.</li> <li>Swelling of the face, tongue, mouth, or throat.</li> <li><a class="HwLinkDefinition" data-hw-type="Definition" data-hw-document-href="not35688" data-hw-section="not35688-sec" rel="Definition" hw:document-type="Definition" hw:document-href="not35688" data-hwid="not35688" hw:section-href="not35688-sec" href="?id=not35688#not35688-sec"><span class="HwLinkText">Difficulty breathing</span></a>, <a class="HwLinkDefinition" data-hw-type="Definition" data-hw-document-href="stw5587" data-hw-section="stw5587-sec" rel="Definition" hw:document-type="Definition" hw:document-href="stw5587" data-hwid="stw5587" hw:section-href="stw5587-sec" href="?id=stw5587#stw5587-sec"><span class="HwLinkText">wheezing</span></a>, or <a class="HwLinkDefinition" data-hw-type="Definition" data-hw-document-href="sta123346" data-hw-section="sta123346-sec" rel="Definition" hw:document-type="Definition" hw:document-href="sta123346" data-hwid="sta123346" hw:section-href="sta123346-sec" href="?id=sta123346#sta123346-sec"><span class="HwLinkText">asthma</span></a>.</li> <li>Abdominal (belly) pain.</li> <li>Vomiting.</li> <li>Diarrhea.</li></ul> <p fingerprint="a6b73fd8" fingerprint-exact="d84c902e">A formula-fed baby with suspected cow's milk protein intolerance usually will be switched to a soy-based formula. But some babies have an intolerance to both milk protein and soy. These babies may need a hypoallergenic formula (such as Alimentum or Nutramigen).</p> <p fingerprint="a699a0f2" fingerprint-exact="020cce10">If you are breastfeeding and you notice that your baby has signs of intolerance when you eat or drink dairy products, contact your baby's doctor.</p> <h3 class="HwSubSectionTitle" fingerprint="8e89512b" fingerprint-exact="0240dd87">Cow's milk sugar intolerance (lactase deficiency)</h3> <p fingerprint="357d4fd9" fingerprint-exact="f56c2795">Some formula-fed babies develop problems similar to <span class="HwOptionalAny"><a class="HwLinkDefinition" data-hw-type="Definition" data-hw-document-href="stl158044" data-hw-section="stl158044-sec" rel="Definition" hw:document-type="Definition" hw:document-href="stl158044" data-hwid="stl158044" hw:section-href="stl158044-sec" href="?id=stl158044#stl158044-sec"><span class="HwLinkText">lactose intolerance</span></a></span> in older children and adults. These babies do not produce enough of the lactase enzyme, which is needed to break down and digest the sugar in milk. In babies, this is a temporary problem. It does not mean that the child will be lactose intolerant as an adult.</p> <p fingerprint="3e1f3aaa" fingerprint-exact="74108c86">Symptoms of lactase deficiency in infants include:</p> <ul fingerprint="d74272d7" fingerprint-exact="808a5160"> <li>A bloated stomach.</li> <li>Belly pain or cramps.</li> <li>Gas.</li></ul> <p fingerprint="fa3386c9" fingerprint-exact="0e593938">Babies who are exclusively breastfed do not develop a milk sugar intolerance. Breast milk contains lactase. So even if the baby has low levels of the enzyme, the amount of lactase contained in breast milk is enough to break down the milk sugars for proper digestion.</p> <p fingerprint="c4ffb322" fingerprint-exact="40bb6105">Medicines for lactose intolerance (such as Lactaid) will not help and should not be given to babies. Soy-based or hypoallergenic formulas that are lactose-free usually are given to replace regular formulas. Your doctor can help guide you about when to gradually try reintroducing regular formula.</p></div><div class="HwNavigationSection HwSectionRelatedInformation" id="sec-aa106616-RelInfo"><h2 class="HwSectionTitle" fingerprint="d5f858e0" fingerprint-exact="c0ffe04b">Related Information</h2><ul fingerprint="574ec440" fingerprint-exact="2217f78e"><li class="HwOptionalAny"><a data-hw-type="Focus" data-hw-document-href="hw148684" data-hw-section="hw148684-sec" hw:document-type="Focus" hw:document-href="hw148684" data-hwid="hw148684" hw:section-href="hw148684-sec" href="?id=hw148684#hw148684-sec">Infant Formulas</a></li> <li class="HwOptionalAny"><a data-hw-type="Mini" data-hw-document-href="hw177971" data-hw-section="hw177973" hw:document-type="Mini" hw:document-href="hw177971" data-hwid="hw177971" hw:section-href="hw177973" href="?id=hw177971#hw177973">Lactose Intolerance</a></li></ul></div><div class="HwNavigationSection HwCreditsSection HwCreditsWithoutNavstack HwSectionCredits" id="sec-aa106616-Credits"><h2 class="HwSectionTitle">Credits</h2><div class="HwContentInformation"><div class="HwLastUpdated"><p><span class="HwInfoLabel">Current as of: </span> February 10, 2021</p></div> <div class="HwCredits"><p><span class="HwInfoLabel">Author: </span>Healthwise Staff<br> <span class="HwInfoLabel">Medical Review: </span> <span class="HwInfoName">E. Gregory Thompson MD - Internal Medicine</span> <br> <span class="HwInfoName">Adam Husney MD - Family Medicine</span> <br> <span class="HwInfoName">Martin J. Gabica MD - Family Medicine</span> <br> <span class="HwInfoName">Lora J. Stewart MD - Allergy and Immunology</span> <br></p></div></div></div></div><div class="HwCustom" id="HwCustomContentBottom"> </div><div class="HwContentNavigation"><div class="HwSectionNavItem" style="display:block" id="secNav-aa106616-sec"><ul><li class="HwContentNavigationNone"> </li><li class="HwContentNavigationTop"><a href="#top">Top of the page</a></li><li class="HwContentNavigationNext"><p>Next Section: </p><a class="HwLinkNavstack" data-hw-type="Focus" data-hw-document-href="aa106616" data-hw-section="aa106616-RelInfo" id="nextLink-aa106616-RelInfo" hw:document-type="Focus" hw:document-href="aa106616" data-hwid="aa106616" hw:section-href="aa106616-RelInfo" href="?id=aa106616#aa106616-RelInfo">Related Information</a></li><li class="HwClear"> </li></ul></div><div class="HwSectionNavItem" style="display:none" id="secNav-aa106616-RelInfo"><ul><li class="HwContentNavigationPrev"><p>Previous Section: </p><a class="HwLinkNavstack" data-hw-type="Focus" data-hw-document-href="aa106616" data-hw-section="aa106616-sec" id="prevLink-aa106616-sec" hw:document-type="Focus" hw:document-href="aa106616" data-hwid="aa106616" hw:section-href="aa106616-sec" href="?id=aa106616#aa106616-sec">Topic Overview</a></li><li class="HwContentNavigationTop"><a href="#top">Top of the page</a></li><li class="HwContentNavigationNext"><p>Next Section: </p><a class="HwLinkNavstack" data-hw-type="Focus" data-hw-document-href="aa106616" data-hw-section="aa106616-Credits" id="nextLink-aa106616-Credits" hw:document-type="Focus" hw:document-href="aa106616" data-hwid="aa106616" hw:section-href="aa106616-Credits" href="?id=aa106616#aa106616-Credits">Credits</a></li><li class="HwClear"> </li></ul></div><div class="HwSectionNavItem" style="display:none" id="secNav-aa106616-Credits"><ul><li class="HwContentNavigationPrev"><p>Previous Section: </p><a class="HwLinkNavstack" data-hw-type="Focus" data-hw-document-href="aa106616" data-hw-section="aa106616-RelInfo" id="prevLink-aa106616-RelInfo" hw:document-type="Focus" hw:document-href="aa106616" data-hwid="aa106616" hw:section-href="aa106616-RelInfo" href="?id=aa106616#aa106616-RelInfo">Related Information</a></li><li class="HwContentNavigationTop"><a href="#top">Top of the page</a></li><li class="HwContentNavigationNone"> </li><li class="HwClear"> </li></ul></div></div><div class="HwContentInformation" role="complementary"><div class="HwLastUpdated"><p><span class="HwInfoLabel">Current as of: </span>February 10, 2021</p></div><div class="HwCredits"><p><span class="HwInfoLabel">Author: </span><a class="HwLinkDisclaimer" href="https://www.healthwise.org/specialpages/legal/abouthw/en">Healthwise Staff</a></p><p><a class="HwLinkDisclaimer" href="https://www.healthwise.org/mdreviewboard.aspx?lang=en-us"><span class="HwInfoLabel">Medical Review:</span></a><span class="HwInfoName">E. Gregory Thompson MD - Internal Medicine</span> & <span class="HwInfoName">Adam Husney MD - Family Medicine</span> & <span class="HwInfoName">Martin J. Gabica MD - Family Medicine</span> & <span class="HwInfoName">Lora J. Stewart MD - Allergy and Immunology</span></p></div></div></div></div><div class="HwColumn" id="HwColumnSidebar2"><div class="HwCustom" id="HwCustomNavigationTop"> </div><div class="HwElement" id="HwNavigationWrapper"><div class="HwNavigation" id="HwNavigation" role="navigation"><h3 class="HwNavStackHeader" id="HwNavStackHeader">Topic Contents</h3><ul aria-labelledby="HwNavStackHeader"><li id="nav-aa106616-sec"><a class="HwLinkNavstack" data-hw-type="Focus" data-hw-document-href="aa106616" data-hw-section="aa106616-sec" hw:document-type="Focus" hw:document-href="aa106616" data-hwid="aa106616" hw:section-href="aa106616-sec" href="?id=aa106616#aa106616-sec">Topic Overview</a></li><li id="nav-aa106616-RelInfo"><a class="HwLinkNavstack" data-hw-type="Focus" data-hw-document-href="aa106616" data-hw-section="aa106616-RelInfo" hw:document-type="Focus" hw:document-href="aa106616" data-hwid="aa106616" hw:section-href="aa106616-RelInfo" href="?id=aa106616#aa106616-RelInfo">Related Information</a></li><li id="nav-aa106616-Credits"><a class="HwLinkNavstack" data-hw-type="Focus" data-hw-document-href="aa106616" data-hw-section="aa106616-Credits" hw:document-type="Focus" hw:document-href="aa106616" data-hwid="aa106616" hw:section-href="aa106616-Credits" href="?id=aa106616#aa106616-Credits">Credits</a></li></ul></div></div><div class="HwNavigationWrapper HwNavigationEmpty"> </div><div class="HwCustom" id="HwCustomNavigationBottom"> </div></div></div></div><div class="HwBlock" id="HwFooter"><div class="HwRow"><div class="HwCustom HwColumn" id="HwCustomFooterLeft"> </div><div class="HwColumn" id="HwFooterLegal"><div class="HwLegal HwElement" role="contentinfo"><div class="HwLogo"><a class="HwLinkExternal" href="https://www.healthwise.org/specialpages/legal/abouthw/en"><img class="HwNoHcMode" data-hw-resource-path="media/interface/hwlogo.png" alt="Click here to learn about Healthwise" src="https://ixbapi.healthwise.net/Resource/13.0/en-us/media/interface/hwlogo.png" hw:resource-path="media/interface/hwlogo.png" hw:release-quarter="13.0"><img class="HwHcMode" data-hw-resource-path="media/interface/hwlogo_hc.png" alt="Click here to learn about Healthwise" src="https://ixbapi.healthwise.net/Resource/13.0/en-us/media/interface/hwlogo_hc.png" hw:resource-path="media/interface/hwlogo_hc.png" hw:release-quarter="13.0"></a></div><div class="HwDisclaimer"><p>This information does not replace the advice of a doctor. 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