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Does freezing breast milk reduce antibodies?

The Impact of Freezing on Breast Milk Antibodies
Breast milk is renowned for its rich composition of antibodies and other immunological factors that provide infants with essential protection against infections. However, many parents wonder whether freezing breast milk affects these vital components. The answer is nuanced, as research indicates that while freezing does preserve some antibodies, it can also lead to a reduction in their levels over time.
Understanding Antibodies in Breast Milk
Breast milk contains a variety of antibodies, particularly secretory immunoglobulin A (sIgA), which plays a crucial role in mucosal immunity. These antibodies help protect infants from pathogens by neutralizing viruses and bacteria before they can cause illness. The presence of these immune factors is one of the primary reasons why breastfeeding is highly recommended for newborns.
Effects of Freezing on Antibody Levels
Research has shown that freezing breast milk does not completely eliminate its antibody content, but it can diminish it. A study highlighted that while frozen breast milk retains some immunological properties, there is a notable decline in specific immune factors, particularly sIgA, after three months of storage. This suggests that while frozen breast milk is still beneficial, it may not be as potent as fresh milk.
Moreover, the process of freezing and thawing can affect the integrity of the antibodies. Some studies indicate that the freezing process can lead to the breakdown of certain immune components, although the extent of this degradation can vary based on storage conditions and duration. For instance, rapid thawing methods can further compromise the viability of live cells and antibodies, making gradual thawing in the refrigerator a preferable option.
Practical Considerations for Parents
For parents who need to store breast milk, it is essential to understand that while frozen milk does contain antibodies, the levels may not be as high as in fresh milk. Experts recommend using frozen breast milk within a few months to maximize its immunological benefits. Additionally, maintaining proper storage conditions—such as freezing at temperatures below -20°C—can help preserve the milk’s quality and safety.
In conclusion, while freezing breast milk does lead to some loss of antibodies, it remains a valuable source of nutrition and immunity for infants. Parents should aim to provide fresh milk whenever possible but can confidently use frozen milk as a practical alternative when necessary.

Does freezing milk destroy nutrients?

People can freeze most milk, including breast milk or human milk. Frozen milk retains its nutritional profile when it thaws, and the sooner someone freezes it, the better the milk quality after thawing. The enzymes and fat-soluble vitamins it contains may decrease very slightly but largely remain the same.

How many ounces of breastmilk does a baby need to get antibodies?

In fact, there is some research that indicates that even as little as 50 ml of breastmilk per day may help prevent disease in breastfed babies. Additionally, our body recognizes the importance of this protection and increases the concentration of SigA as our milk supply begins to decrease.

Will the antibodies in breastmilk keep babies from getting sick?

Your baby won’t catch the illness through your breast milk – in fact, it will contain antibodies to reduce her risk of getting the same bug. “Not only is it safe, breastfeeding while sick is a good idea.

Does frozen breast milk lose benefits?

Keep in mind that research suggests that the longer you store breast milk — whether in the refrigerator or in the freezer — the greater the loss of vitamin C in the milk. It’s also important to note that your breast milk changes to meet your baby’s needs.

Do breastmilk antibodies survive freezing?

Remember to label the breast milk with the date that you pumped it. Thaw milk in the refrigerator or in warm water just before feeding. Thawed milk must be used within 24 hours. Note: freezing breastmilk destroys some of its antibodies.

Do antibodies survive in frozen breastmilk?

Thaw milk in the refrigerator or in warm water just before feeding. Thawed milk must be used within 24 hours. Note: freezing breastmilk destroys some of its antibodies.

Is 2oz of breastmilk a day beneficial?

The good news: Any amount of breast milk is beneficial for your baby, whether you’re exclusively breastfeeding or supplementing with formula – and whether you’re nursing, pumping some breast milk, or exclusively pumping.

Does freezing breastmilk affect quality?

Thawed milk is an excellent alternative when fresh breast milk isn’t available. Previously frozen breast milk has similar nutrient and antibody content to fresh milk. It does lose a small amount of those qualities but can still provide a baby with the nutrition it needs.

Does frozen breastmilk have antibodies?

Frozen Breast Milk Retains Most of Its Nutrients
Previously frozen breast milk has similar nutrient and antibody content to fresh milk. It does lose a small amount of those qualities but can still provide a baby with the nutrition it needs.

What are the disadvantages of frozen milk?

One common issue that arises when cow milk is frozen is its tendency to change consistency or texture. In particular, when frozen milk is brought back to liquid form, fat can separate, resulting in a graininess that some find worrisome or even off-putting.

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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