Pediatricians Issue Warning Against Unpasteurized Milk Consumption

Medical professionals are raising alarms regarding the consumption of unpasteurized dairy products. A recent policy statement issued by the American Academy of Pediatrics, published in the journal Pediatrics, concludes that raw milk offers no proven health advantages over pasteurized alternatives that outweigh its well-documented risks of foodborne illness.

The Risks of Foodborne Illnesses

In the United States, foodborne illness accounts for substantial morbidity and mortality, with unpasteurized milk and milk products acting as key sources of increased risk. Contamination can happen through several pathways, including clinical or subclinical mastitis, direct contact with bovine fecal matter, and general environmental contamination. Pasteurization involves heating milk under controlled conditions to eliminate disease-causing microorganisms, providing protection that basic sanitation or filtration alone cannot achieve.

Historical data highlights the severity of these pathogens. Before milk pasteurization became established in the United States during the 1920s, unpasteurized milk led to widespread outbreaks of diphtheria, tuberculosis, typhoid fever, brucellosis, and group A Streptococcus infections. Between 2013 and 2018, raw milk consumption was linked to 75 outbreaks across the country, resulting in 675 illnesses, 98 hospitalizations, and two deaths. Nearly half of those illnesses occurred in individuals younger than 20 years, with 14 percent affecting children under the age of five.

Vulnerable Populations and Emerging Threats

Medical experts emphasize that the risk of severe infection is particularly high among young children, older adults, pregnant individuals, and immunocompromised people. Pregnant individuals face especially serious risks because listeriosis occurs roughly 12 to 14 times more frequently during pregnancy than in the general population, potentially leading to miscarriage, stillbirth, premature delivery, or severe neonatal infection. Furthermore, young children face threats such as hemolytic uremic syndrome secondary to E. coli O157 infections.

An emerging threat highlighted in the guidance is the highly pathogenic avian influenza virus. Bovine avian influenza infections can lead to very high concentrations of the virus in the mammary gland and resulting milk. Although infectious virus has been detected in raw milk from infected cows, the policy statement noted that no human cases linked directly to raw milk consumption had been identified at that time. Pasteurization effectively inactivates this virus.

Nutritional Profile Comparisons

Despite claims by supporters that raw milk provides superior nutritional benefits, comparative analyses indicate otherwise. Pasteurization does not destroy or neutralize important nutrients in milk:

• Comparisons of lipid profiles between pasteurized and raw milk reveal no differences in free fatty acids or triglycerides.
• Concentrations of linoleic and alpha-linolenic acids remain unchanged following pasteurization.
• Major allergenic proteins, including whey and casein, are preserved post-pasteurization, alongside essential minerals such as calcium, magnesium, and zinc.

While pasteurization can reduce certain heat-sensitive bioactive proteins and specific vitamins like vitamin B2, health organizations maintain that the primary goal of consuming milk is not to obtain bovine bioactive proteins. Consequently, advisory bodies continue to strongly endorse consuming exclusively pasteurized milk and milk products across all demographics.

Source: News-Medical.net