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What are the benefits of adults drinking breast milk? A clinical perspective

5 min read

According to a 2015 editorial in the Journal of the Royal Society of Medicine, no scientific study has shown that direct adult consumption of human breast milk offers anything more than a placebo effect. The claims surrounding potential benefits of adults drinking breast milk are largely unsubstantiated and carry significant health risks.

Quick Summary

Despite anecdotal claims about immune-boosting and muscle-building effects, scientific evidence shows no significant health benefits for adults drinking human breast milk, and the practice carries serious risks of bacterial and infectious disease contamination from unregulated sources.

Key Points

  • No Proven Benefits: There is no scientific evidence to support health benefits for adults drinking human breast milk beyond a possible placebo effect.

  • Significant Risks from Unregulated Sources: Consuming milk purchased online or from unscreened donors carries a high risk of bacterial contamination and infectious diseases like HIV and hepatitis.

  • Nutritionally Inferior: For adult needs, human breast milk contains less protein than cow's milk and is not an effective supplement for bodybuilding or general health.

  • Safety Depends on the Source: While medically sanctioned, pasteurized milk from a regulated bank is safe for specific, diagnosed conditions, unregulated milk from the online market is dangerous.

  • Focus on Evidence-Based Wellness: For actual health benefits, a balanced diet and consulting a doctor are more effective and safer alternatives than relying on unproven claims about breast milk.

In This Article

Debunking the Myth of a "Superfood"

For decades, human breast milk has been celebrated as the perfect food for infants, rich with the specific nutrients and immune factors a developing baby needs to thrive. This well-documented success for babies has led to the persistent misconception that it offers similar "superfood" benefits to adults. However, the nutritional composition of human milk is specifically tailored for an infant's rapidly developing digestive system and body, not for a fully grown adult's needs. The protein content, for instance, is significantly lower in human milk than in cow's milk, which is a key reason why it does not offer superior benefits for muscle growth or general nutrition in adults.

Why human milk is not an effective nutritional supplement for adults

Adults have different nutritional requirements than infants. While human milk contains a balance of fats, proteins, and carbohydrates for a baby's specific developmental stage, these proportions are not optimal for an adult diet.

  • Lower Protein: Breast milk contains considerably less protein than cow's milk, contradicting claims made in online forums about it being superior for athletic performance or bodybuilding.
  • Different Immune Factors: While breast milk contains beneficial antibodies for infants, there is no scientific evidence to suggest these same properties provide any significant, non-placebo benefits to an adult's already mature immune system.
  • Nutrient Profile: The overall balance of nutrients is suited for an infant. Adults require a much broader and more complex range of nutrients from a balanced diet, which breast milk cannot provide on its own.
  • Lactose Intolerance: Many adults lose the ability to digest lactose effectively after infancy. Breast milk's high lactose content can cause significant digestive distress for many adult consumers.

The Serious Health Risks of Consuming Unregulated Human Milk

One of the most critical issues surrounding adult breast milk consumption is the source. The vast majority of adults seeking breast milk acquire it through informal, unregulated channels, such as online marketplaces or direct from individuals. This black market poses severe health risks, as the milk is not screened, pasteurized, or stored according to medical safety standards.

Primary health hazards of unregulated milk

  • Bacterial Contamination: Improper sanitation during pumping, poor handling, and inadequate storage can lead to dangerous levels of bacterial contamination. A 2015 study from Nationwide Children's Hospital found high levels of bacterial contamination in human milk purchased online.
  • Infectious Diseases: Human milk can be a vector for serious infectious diseases, including HIV, Hepatitis B and C, and Syphilis, especially if the donor's health status is unknown or misrepresented. Screening during pregnancy is not sufficient, as a person can contract a virus later on.
  • Contaminants: The milk can contain traces of prescription drugs, illicit drugs, alcohol, and other substances consumed by the lactating individual.
  • Adulteration: Some unregulated milk sources may be intentionally watered down or mixed with other liquids, such as cow's milk, to increase volume.

Medical vs. Anecdotal Use of Human Milk

While the medical consensus does not support adult consumption of raw breast milk for general health, there have been limited instances of supervised, medically sanctioned use. In rare cases, primarily for seriously ill adults with compromised immune or digestive systems, some milk banks have supplied pasteurized donor milk with a doctor's prescription. This is a completely different scenario from unregulated consumption and highlights the importance of medical supervision and proper pasteurization to ensure safety and effectiveness. Researchers are also exploring the therapeutic potential of components within breast milk, such as specific proteins or oligosaccharides, rather than advocating for the consumption of the milk itself.

Breast milk vs. cow's milk for adult nutrition

To provide further context, it's helpful to compare the nutritional profiles of human breast milk and cow's milk for adult consumption. While cow's milk is not without its own set of debates and potential issues for adults, its composition is naturally better suited for providing key nutrients for adult human health.

Feature Human Milk (for adults) Cow's Milk (for adults)
Protein Content Considerably lower (approx. 0.8-0.9%) Higher (approx. 3.3%)
Immune Benefits Placebo effect, not proven for adults No specific immune benefits for adults
Key Minerals Lower levels of key minerals like calcium, potassium, phosphorus Higher levels of key minerals
Gut Health Minimal impact on established adult microbiome Can contain probiotics depending on processing
Lactose Content Higher (approx. 7%), often causes intolerance Lower (approx. 4%), variable intolerance
Safety from Pathogens High risk from unregulated sources Regulated supply chain, pasteurized

Conclusion: The Final Word on Adult Consumption

Ultimately, the science is clear: the supposed health benefits of adults drinking breast milk are not clinically supported and are overshadowed by significant health risks. Claims of enhanced immunity, muscle gain, or disease prevention are based on misinformation and a fundamental misunderstanding of nutritional biology. For those considering this trend, especially through unregulated channels, the risk of serious illness from bacterial and viral contamination is very real. For general wellness and proper nutrition, a balanced diet is a far safer and more effective choice. For medical issues, consulting a doctor is paramount.

For more information on the dangers of consuming breast milk from unregulated sources, refer to the following study: The risks for adult consumers of human breast milk bought from the online market.

Frequently Asked Questions

What are the real risks of buying human milk online?

Purchasing human breast milk from unregulated online sources is extremely risky. The milk is not screened for diseases like HIV and hepatitis, and can be contaminated with bacteria due to improper handling, storage, or transportation.

Does breast milk really boost an adult's immune system?

No. While breast milk provides crucial immune factors for a baby's developing immune system, there is no clinical evidence that these offer any significant immune-boosting benefits to a healthy adult. Any perceived benefit is likely a placebo effect.

Is breast milk better for muscle building than cow's milk?

No, in fact, the opposite is true. Human breast milk has a lower protein content than cow's milk, making it nutritionally inferior for building muscle.

Can adults get sick from drinking breast milk?

Yes. Adults can contract serious illnesses from drinking unregulated breast milk contaminated with bacteria (such as staph and strep) or infectious diseases (such as HIV, hepatitis, and syphilis).

Why do some bodybuilders believe breast milk helps them?

This is largely based on anecdotal claims and misinformation found on online forums. The belief stems from a flawed assumption that what is beneficial for an infant's growth is also beneficial for an adult seeking athletic gains, which is not supported by science.

What about the human milk banks for adult use?

While some reputable milk banks, such as the Mother's Milk Bank in San Jose, have provided pasteurized donor milk to adults with a doctor's prescription for serious illnesses, this is a rare, medically supervised practice. It is not available for general consumption and involves strict safety protocols.

Is it safe to drink breast milk from a known, healthy source?

Even with a known source, there are risks. A person can carry a virus unknowingly, and contamination can still occur through improper sanitation or storage. It's always a health risk and the claimed benefits remain unproven.

Frequently Asked Questions

Scientific evidence shows no significant health benefits for adults drinking human breast milk. Claims of enhanced immunity or muscle growth are largely unsupported and may be a placebo effect.

No, it is not safe. Milk from unregulated online sources is not screened for diseases and is highly susceptible to contamination with bacteria and viruses like HIV and hepatitis.

While breast milk contains immune factors that are crucial for infants, these have not been shown to provide meaningful medicinal benefits to an adult's mature immune system. Medical use of breast milk components is still in the research phase.

No. The protein content in human breast milk is considerably lower than in cow's milk, making it an inferior choice for adults seeking to increase their protein intake.

Yes. If the milk is unpasteurized and from an unscreened donor, there is a risk of contracting serious infectious diseases, including HIV, hepatitis, and syphilis, or experiencing foodborne bacterial illness.

In rare, medically supervised cases, a regulated milk bank may provide pasteurized donor milk to seriously ill adults with a doctor's prescription. However, this is not a general health practice and is done under strict safety conditions.

The trend is often driven by anecdotal claims and online misinformation. The scientifically unsupported belief that what is good for a baby must be a "superfood" for an adult has fueled the practice, despite the evidence pointing to health risks.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.