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Does gut bacteria pass through breast milk?

The Connection Between Gut Bacteria and Breast Milk
Recent research has illuminated the fascinating relationship between breast milk and the gut microbiota of infants, suggesting that gut bacteria can indeed pass through breast milk. This connection plays a crucial role in shaping the health and immune development of newborns.
Breast Milk as a Source of Microbes
Breast milk is not just a source of essential nutrients; it also contains a diverse array of beneficial bacteria. Studies have shown that the microbiota present in breast milk is closely related to the composition of an infant’s gut microbiota. For instance, a cohort study indicated that the microbiota in breast milk significantly influences the colonization of gut bacteria in newborns. This suggests that when infants consume breast milk, they are not only receiving nutrition but also a variety of live microbes that can help establish their gut flora.
Mechanisms of Bacterial Transfer
The transfer of bacteria from mother to infant through breast milk occurs via several mechanisms. One key process involves the retrograde flow of milk during suckling, which can introduce maternal bacteria into the infant’s mouth and subsequently into their digestive system. Additionally, maternal gut bacteria can translocate through the intestinal barrier and reach the mammary glands via the lymphatic system, further contributing to the microbial content of breast milk.
Impact on Infant Health
The presence of these beneficial bacteria in breast milk is associated with numerous health benefits for infants. Research indicates that breastfeeding is linked to improved immune development, reduced incidence of gastrointestinal diseases, and lower mortality rates compared to formula feeding. The beneficial microbes in breast milk help to establish a healthy gut microbiome, which is crucial for the infant’s overall health and development.
Feeding Practices and Microbial Transfer
Interestingly, the method of breastfeeding can influence the types of bacteria transferred to the infant. Studies have shown that direct breastfeeding is associated with a higher co-occurrence of specific bacteria in both the mother’s milk and the infant’s gut. This highlights the importance of breastfeeding practices in optimizing the microbial benefits for infants.
Conclusion
In summary, the evidence strongly supports the notion that gut bacteria do pass through breast milk, playing a vital role in the early development of an infant’s gut microbiota. This microbial transfer not only aids in establishing a healthy gut environment but also contributes to the overall health and immune resilience of the child. As research continues to evolve, the understanding of this intricate relationship between maternal health, breast milk, and infant microbiota will undoubtedly deepen, offering new insights into the foundations of health from the very beginning of life.

Does colostrum help gut bacteria?

Bovine colostrum is made from the milky fluid a cow secretes after giving birth. It may help improve immunity, fight germs, and promote gut health.

How do I know if my breastmilk is upsetting my baby’s stomach?

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. This lets you carefully look at your diet instead of getting rid of foods that may not be the cause of your baby’s distress.

How to get rid of bacteria in breast milk?

The bacteria does not exist in breast milk, only in contaminated pump parts or bottles/nipples, so allowing the baby to feed directly from the breast is a way that you can prevent this infection. Lactation consultants usually recommend ONLY direct breastfeeding in the first few weeks anyway.

Do probiotics pass to baby in breastmilk?

CONCLUSION. Maternal probiotic supplements effectively orchestrate the breast milk and infant gut microbiome with a wide range of clinical benefits and safety. Lactobacillus, Bifidobacterium, Streptococcus thermophilus, and S. boulardii can be used as maternal supplements to promote infant health.

Can bacteria be passed through breast milk?

Breast milk can occasionally transmit serious viral and bacterial infections to preterm infants. We present three cases of late-onset neonatal sepsis, including one that resulted in death, occurring in preterm infants. The likely source of the microorganisms in all three cases was expressed breast milk.

Can probiotics upset baby’s tummy?

Research indicates that probiotics are safe and well- tolerated in normal, healthy infants and children. Good tolerance has also been observed in premature infants, very low birth weight babies and in HIV-infected children and adults. Probiotics are also safe to use in late pregnancy.

Can I pass illness through breast milk?

So, here is the good news. Your body has superpowers! Did you know that you cannot pass illnesses such as the cold, flu, fever, diarrhea, vomiting and even COVID through your breast milk?

How do newborns get gut bacteria?

Babies in the womb encounter no microbes until they are born. Most babies get their first big dose of microbes at birth, while traveling through the birth canal, then pick up more while breastfeeding. Early microbes helped shape your immune system, your digestive system, even your brain.

Does breastmilk feed the gut microbiome?

Breastmilk seeds and nurtures the microbiome with beneficial bacteria, until it is fully mature. Beneficial gut bacteria play a role in lowering risk for chronic diseases like asthma, obesity, allergies, dermatitis, inflammatory bowel disease and neurodevelopmental disorders.

How long does it take for bacteria to grow in breast milk?

At room temperature, mature milk from term mothers could be stored for 6 h without a significant increase in bacterial counts. Term colostrum could be stored for 12 h without significant bacterial growth. Preterm milk could be stored for 4 hr.

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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