Does freezing breast milk destroy antibodies?

The Impact of Freezing on Breast Milk Antibodies
Breast milk is renowned for its rich nutritional profile and immune-boosting properties, largely attributed to its antibodies. However, many parents wonder whether freezing breast milk affects these vital components. The answer is nuanced, as freezing does not entirely destroy antibodies but can lead to a reduction in their levels and effectiveness.
Antibodies in Breast Milk
Breast milk contains various immunological factors, including antibodies like secretory immunoglobulin A (sIgA), which play a crucial role in protecting infants from infections. These antibodies are particularly important in the early months of life when an infant’s immune system is still developing.
Effects of Freezing on Antibodies
Research indicates that while freezing breast milk does preserve some antibodies, it can also lead to a decline in their concentration over time. For instance, a study highlighted that levels of sIgA in frozen breast milk may decrease after three months of storage. This suggests that while frozen breast milk still retains some immunological benefits, the potency of these antibodies may diminish with prolonged freezing.
Moreover, the method of thawing can also impact the integrity of these antibodies. Rapid heating can destroy live cells and further reduce the antibody load, making it advisable to thaw frozen breast milk slowly in the refrigerator over 24 hours.
Nutritional Quality and Storage Recommendations
Freezing breast milk at temperatures below -20°C is generally recommended to maintain its nutritional quality. While some studies have shown that freezing does not significantly compromise the overall nutritional content, the loss of certain bioactive factors, including antibodies, is a concern.
In neonatal units and human milk banks, careful protocols are followed to ensure that the benefits of breast milk are maximized, even after freezing. For instance, while cytomegalovirus (CMV) can be inactivated through freezing, the antibodies remain present, indicating that freezing can be a safe method for storing breast milk without completely negating its immunological benefits.
Conclusion
In summary, freezing breast milk does not entirely destroy antibodies, but it can lead to a decrease in their levels and effectiveness over time. Parents should be aware of the best practices for freezing and thawing to preserve the immunological properties of breast milk as much as possible. While frozen breast milk remains a valuable resource for infant nutrition, understanding its limitations can help caregivers make informed decisions about feeding practices.

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.

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.

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.

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.

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.

Can frozen breastmilk make a baby sick?

Certain components of frozen expressed milk may change when the milk moves from liquid to frozen and then is thawed again. There is no evidence that milk that has undergone these changes is unsafe and most babies will drink it.

When is breast milk most nutritious?

Four weeks onwards: Mature milk
By the time your baby is four weeks old, your breast milk will be fully mature. It’s rich in protein, sugar, vitamins and minerals, plus numerous bioactive components – such as hormones, growth factors, enzymes and live cells – to support your baby’s healthy growth and development.

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.

How to get rid of lipase in frozen breast milk?

Scald your breastmilk to reduce high lipase.
Heat until it reaches 180 F, you’ll see little bubbles around the edge of the milk in the pan (do not boil!). Once you reach this temp, remove the milk from the heat, cool and store as quickly as possible.

Will the antibodies in breastmilk keep baby 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.