Raw Milk and Food Poisoning: A Public Health Perspective

May 4, 2025

Raw milk—milk that has not undergone pasteurization—is often touted for its natural qualities and potential health benefits. However, consuming raw milk poses significant health risks due to the presence of harmful pathogens that can lead to foodborne illnesses. Government health agencies, including the Centers for Disease Control and Prevention (CDC), the U.S. Food and Drug Administration (FDA), and the Food Safety and Standards Authority of India (FSSAI), have issued warnings about the dangers associated with raw milk consumption.

Pathogens Present in Raw Milk

Raw milk can harbor various harmful microorganisms, including:

  • Salmonella
  • Escherichia coli (E. coli)
  • Listeria monocytogenes
  • Campylobacter jejuni
  • Brucella abortus
  • Staphylococcus aureus
  • Bacillus cereus

These pathogens can contaminate milk during the milking process, especially if hygiene practices are inadequate or if the milk is not properly refrigerated. Pasteurization—a heat treatment process—effectively eliminates these harmful bacteria, making milk safe for consumption.

Health Risks Associated with Raw Milk

The consumption of raw milk is linked to various foodborne illnesses, which can have severe health implications. Symptoms of food poisoning from contaminated milk may include

  • Diarrhea
  • Stomach cramps
  • Nausea and vomiting
  • Fever
  • Dehydration

Certain populations are more vulnerable to severe outcomes from these illnesses, including:

  • Children and infants
  • Elderly individuals
  • Pregnant women
  • Individuals with weakened immune systems

In extreme cases, infections from pathogens like Listeria can lead to life-threatening conditions such as meningitis or septicemia.

Regulatory Measures and Standards

United States

The FDA prohibits the interstate sale of raw milk and strongly advises against its consumption. Despite this, some states permit the sale of raw milk within their jurisdictions, leading to variations in regulations across the country. CDC

India

The FSSAI has established microbiological standards for milk and milk products to ensure safety and quality. These standards include guidelines for detecting and controlling pathogens such as Salmonella, E. coli, Listeria, and Staphylococcus aureus in dairy products. The FSSAI also emphasizes the importance of hygienic practices during milk collection, storage, and transportation to prevent contamination.

Recommendations for Consumers

To minimize the risk of foodborne illnesses associated with milk consumption:

  • Choose pasteurized milk and dairy products: Ensure that the milk and dairy products you consume have been pasteurized.
  • Practice proper hygiene: Maintain cleanliness during the handling and storage of milk.
  • Be cautious with homemade dairy products: Avoid consuming homemade dairy products made from raw milk.
  • Stay informed: Keep abreast of food safety guidelines issued by health authorities.

While raw milk may appeal to some for its perceived natural benefits, the health risks associated with its consumption are substantial. Adhering to food safety guidelines and opting for pasteurized milk can significantly reduce the risk of foodborne illnesses, safeguarding public health.

References

  1. Centers for Disease Control and Prevention (CDC). “Raw Milk.” https://www.cdc.gov/food-safety/foods/raw-milk.htmlCDC
  2. U.S. Food and Drug Administration (FDA). “Dangers of Raw Milk: Unpasteurized Milk Can Pose a Serious Health Risk.” https://www.fda.gov/food/buy-store-serve-safe-food/dangers-raw-milk-unpasteurized-milk-can-pose-serious-health-riskU.S. Food and Drug Administration
  3. Food Safety and Standards Authority of India (FSSAI). “Microbiological Standards for Milk and Milk Products.” https://fssai.gov.in/upload/uploadfiles/files/Draft_Regulation_on_Microbiological_standards_milk_and_milk_products_31_08_2015.pdfFSSAI+5FSSAI+5FSSAI+5
  4. Food Safety and Standards Authority of India (FSSAI). “Guidance Document on Milk and Milk Products.” https://fssai.gov.in/upload/uploadfiles/files/Guidance_Document_Milk_14_03_2019.pdf
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