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Writer's pictureRebecca McCann

Milk Sharing: Is It Safe?

Milk being poured into a glass storage bottle.

There are many reasons why a family might consider milk sharing. A mother may be experiencing low milk production or may be unable to breastfeed due to medical reasons, such as taking contraindicated medications or undergoing cancer treatment. Milk sharing can also be an option for families who have adopted or are welcoming a baby through surrogacy. In heartbreaking situations, the nursing parent may have passed away.


For theses families, milk sharing offers a way to provide breastmilk’s unparalleled nutritional and immunological benefits when breastfeeding isn’t an option. It can be a beautiful and meaningful act - the recipient gains the optimal nutrition and protection that breastmilk provides, while the donor has the joy of nourishing a baby in need, sometimes creating a special bond between the families involved. 


Milk sharing is a practice that has existed throughout history, and has recently gained attention in modern breastfeeding communities. Whether through informal arrangements between families and friends, or regulated milk banks, sharing breastmilk can be a valuable resource for parents and babies. However, like any health-related decision, it’s essential to carefully weigh the risks and benefits before proceeding.


The History of Milk Sharing - Wet Nursing


The practice of wet nursing - where one woman breastfeeds another’s child - dates back to ancient civilizations and has taken various forms across cultures and centuries. Wet nurses were often employed by wealthy families or relied upon in times of necessity, such as when a birth mother was unable to nurse due to illness, low milk production, or death. At times, wet nursing was a formalized profession with contracts and laws regulating the practice. The history of wet nursing also includes darker chapters. Enslaved women were frequently forced to wet nurse the children of their enslavers, often depriving their own infants of nourishment and care.


While wet nursing is less common today, the concept of milk sharing has persisted and evolved. Families now turn to both informal and formal methods to share breastmilk. Let’s explore the risks and benefits of each. 


Formal Milk Sharing: Milk Banks


Milk banks provide the safest, most regulated option for milk sharing. These organizations collect, screen, pasteurize, and distribute donated breastmilk to babies in need, primarily focusing on premature or medically fragile infants.


Benefits of Formal Milk Sharing through Milk Banks:

  1. Rigorous Health Screening: Donors undergo thorough screening for health conditions, medications, and lifestyle factors. Testing includes HIV, Hepatitis, and other communicable diseases. 

  2. Pasteurization: The pasteurization process kills harmful bacteria and viruses, significantly reducing the risk of contamination. 

  3. Quality Control: Strict protocols ensure safe collection, storage, and handling of milk. 


Risks of Formal Milk Sharing through Milk Banks:

  1. Availability and Access: Milk banks may not be available in all areas, and there could be waitlists for families needing donor milk. Additionally, some milk banks may have strict eligibility criteria for receiving donated milk. 

  2. Cost: Many milk banks charge fees to cover screening and processing, which can be a financial barrier for some families. Insurance may help cover this cost in some cases.

  3. Cultural and Emotional Considerations: Some families may feel uncomfortable using donor milk from strangers or have cultural or religious beliefs that influence their decision. 


Informal Milk Sharing


Informal milk sharing occurs when families exchange breastmilk personally, often through social networks or communities. This can happen between family members, friends, or online groups dedicated to milk sharing. In these situations the milk is given freely, not sold. 


Benefits of Informal Milk Sharing:

  1. Accessibility: Informal milk sharing may offer quicker and easier access to breastmilk compared to milk banks.

  2. Personal Connections: Sharing breast milk can create bonds of trust and community between parents, and can be particularly meaningful when there is an emotional connection between the donor and recipient. 


Risks of Informal Milk Sharing:

  1. Potential for Contamination: Informal sharing lacks oversight, increasing the risk of contamination or disease transmission. Without proper storage or handling, milk may contain harmful bacteria.

  2. Lack of Screening: Donors may not undergo testing for transmissible diseases (like HIV, or Hepatitis), or disclose lifestyle factors such as substance use (including prescription medication, recreational drugs, or illegal substances) that could affect the safety of the milk.

  3. Cultural and Emotional Considerations: As with formal milk sharing, some families may feel uncomfortable using milk from another person or have cultural beliefs that influence their decision. 


Organizations like Eats on Feets provide guidelines to reduce risks involved in informal milk sharing, including donor screening and safe milk handling practices. Some also recommend home pasteurization to mitigate contamination concerns. 


Selling and Purchasing Breast Milk


Online platforms, such as Facebook groups, have made it easier for individuals to sell or purchase breastmilk, but this practice remains controversial. While online marketplaces offer convenience, they lack safety controls, and unfortunately, financial incentives can sometimes lead to unethical practices. 


Risks of Purchasing Breast Milk:

  1. Safety Concerns: Milk sold online often bypasses donor screening and may be mishandled, increasing the risk of bacterial contamination. A 2013 study found significant contamination in human milk purchased over the internet.

    Read the study here.

  2. Ethical Issues: Sadly, some individuals may resort to dishonest practices in order to make money from selling breastmilk. Milk may be diluted or improperly stored. The individual selling the milk may not be transparent about their medical history of lifestyle factors that can affect the milk. In extreme cases, milk advertised as human milk may not be human milk at all.  


Due to these concerns, many organizations, including The Academy of Breastfeeding Medicine, and informal breastmilk sharing groups, such as Eats on Feets and Human Milk 4 Human Babies strongly discourage the sale of breastmilk.


What do the experts say about informal milk sharing? 


FDA: The FDA recommends against using breastmilk acquired directly from individuals or through the internet, due to contamination and disease risks. If informal milk sharing is pursued, the FDA advises screening the donor and ensuring safe handling practices.

More info from the FDA can be found here.


Academy of Breastfeeding Medicine: ABM acknowledges the potential benefits of milk sharing, but encourages medical screening of the donor and safe milk handling practices. ABM’s Position Statement on Informal Breast Milk Sharing can be found here.


TL;DR

Milk sharing, whether informal or formal, can help families meet their breastfeeding goals, but it comes with risks and benefits. 


Formal milk banks are the safest option, offering rigorous screening and pasteurization, but may be costly or limited in availability. Informal milk sharing is more accessible but carries higher risks due to the lack of oversight and testing. Purchasing breastmilk is a practice that should be approached with extreme caution due to significant safety and ethical concerns. 


Before deciding, consult your baby’s healthcare provider and weigh the risks and benefits carefully. BRAIN is a helpful acronym for decision making:

Benefits - What are the advantages?

Risks - What are the potential harms?

Alternatives - Are there any other options?

Intuition - What feels right to you?

Nothing - What happens if we do nothing?


Informed decision-making is key. Always do what works best for you and your baby!


Have any questions about milk sharing? Don't hesitate to reach out!



Further Resources:





References:

Keim SA, Hogan JS, McNamara KA, Gudimetla V, Dillon CE, Kwiek JJ, Geraghty SR. Microbial contamination of human milk purchased via the Internet. Pediatrics. 2013 Nov;132(5):e1227-35. doi: 10.1542/peds.2013-1687. Epub 2013 Oct 21. PMID: 24144714; PMCID: PMC4530303.


Stevens EE, Patrick TE, Pickler R. A history of infant feeding. J Perinat Educ. 2009 Spring;18(2):32-9. doi: 10.1624/105812409X426314. PMID: 20190854; PMCID: PMC2684040.



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