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How to tell if your baby is allergic to your breast milk?

Understanding Breast Milk Allergies in Infants
Breastfeeding is often heralded as the best nutritional choice for infants, but for a small percentage of babies, it can lead to allergic reactions. While human breast milk is generally well-tolerated, some infants may experience adverse reactions due to proteins passed through the milk from the mother’s diet. Understanding how to identify these reactions is crucial for the health and comfort of both mother and baby.
Signs of Allergic Reactions
Approximately 2% to 3% of infants may develop digestive intolerances to food proteins present in breast milk. Common symptoms include diarrhea, bloating, fussiness, and increased gas. These signs can manifest shortly after breastfeeding, making it essential for parents to be vigilant.
In addition to gastrointestinal symptoms, other indicators of a potential allergy may include eczema, vomiting, colic, constipation, and poor growth. If a baby exhibits excessive crying or discomfort after nursing, it could be a sign that they are reacting to something in the breast milk.
The Role of Maternal Diet
Mothers often worry that their diet may be affecting their baby’s health. While breast milk is designed to be nutritious and safe, certain foods consumed by the mother can lead to allergic reactions in sensitive infants. Common allergens include dairy, soy, eggs, and nuts. If a mother suspects that her baby is reacting to her breast milk, an elimination diet may be a practical approach to identify the offending food.
Seeking Medical Advice
If parents notice any of the aforementioned symptoms, it is crucial to consult a pediatrician. The doctor may conduct a thorough examination and could recommend tests such as stool analysis or blood tests to rule out other conditions. In some cases, a referral to an allergist may be necessary for further evaluation, including skin testing for allergies.
Conclusion
While breast milk is typically safe for infants, a small number may experience allergies or intolerances due to proteins in the milk. Recognizing the signs and symptoms early can help parents take appropriate action, ensuring their baby’s well-being. If there are concerns about allergies, seeking professional medical advice is always the best course of action.

How do I know if my breastmilk is upsetting my baby?

If your baby shows negative symptoms after drinking breast milk. Consider how your baby responds to breast milk after drinking it. If symptoms occur such as fussiness, irritability, crying, gas, increased spitting up and/or drawing their legs up due to tummy pain, write down everything you ate that day.

How to know if baby isn’t tolerating breast milk?

MSPI symptoms

​fussiness or excess crying before, during and after a feeding ​stools may be infrequent, watery, have mucous, or be bloody
​reflux ​spitting up
​nasal congestion ​skin rash, eczema, hives, dry skin
​weight loss ​repeated vomiting
​sudden waking with discomfort

How do you rule out a milk allergy in a baby?

The doctor will examine your baby, and might order some stool tests and blood tests. The doctor may refer you to an allergist, who might do skin testing. In skin testing, the doctor or nurse will place a tiny bit of milk protein on the skin, then make a small scratch on the skin.

How do I know if dairy is affecting my breastfed baby?

It is common for breastfeeding parents to blame their diet when the baby is more fussy than usual. However, it is important to note that usually if a baby has an intolerance to a food you are consuming, there will be another sign of distress such as rash, forceful spit up, or blood or mucous in the baby’s stool.

How do I know if my baby is allergic to my breastmilk?

Check for physical symptoms: Check if your baby experiences any physical symptoms such as skin rashes, hives, eczema, persistent diaper rash, or nasal congestion. These can be indications of an allergic reaction. Monitor bowel movements: Pay attention to your baby’s bowel movements.

What is the 3 month breastfeeding crisis?

As you may have read in my other blog about a baby’s breastfeeding crisis, a breastfeeding crisis, sometimes called a growth spurt, is a common phrase used to describe a phase where mothers may encounter significant breastfeeding challenges, typically related to an increase in milk demand from the baby.

What does baby poop look like with a milk allergy?

Green, bloody, or mucus-tinged stool—along with some other issues—could indicate a milk allergy. If you suspect your baby has a cow’s milk protein allergy, keep an eye out for these common issues that may occur shortly after feeding: wheezing, coughing, swelling, a rash, gas, crying, and unusual poops.

How do I know if my baby is not tolerating breast milk?

MSPI symptoms

​fussiness or excess crying before, during and after a feeding ​stools may be infrequent, watery, have mucous, or be bloody
​reflux ​spitting up
​nasal congestion ​skin rash, eczema, hives, dry skin
​weight loss ​repeated vomiting
​sudden waking with discomfort

How to flush dairy out of your system while breastfeeding?

Take out all cow’s milk products, soy and eggs from your diet. Wait 2-4 weeks to see if baby improves. The food will clear from your milk in a few days, but baby’s gut may take longer to heal. If baby improves, introduce one new type of food at a time, generally the one that you miss the most!

How do I know if my breast milk is bad for my baby?

That doesn’t always mean it’s soured or spoiled, but you should talk to your doctor or lactation specialist about what to do if your breast milk tastes or smells bad or your baby doesn’t like it. You may need to avoid certain foods, change how you pump or store your milk, or make other lifestyle changes.

Natasha Lunn

Tash is an IBCLC and Business Coach helping fellow IBCLCs create fun, profitable businesses that are more than just an expensive hobby. Before becoming an IBCLC and starting her private practice - The Boobala, Tash graduated as an Osteopath in 2008 and has been in Private Practice in South West Sydney. She was also a volunteer Breastfeeding Counsellor and Community Educator with the Australian Breastfeeding Association for 6 years. Through her business, Your Lactation Biz, Tash coaches and creates products to help new and seasoned IBCLCs build businesses that suit their personality and lifestyle.

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