For Healthcare Providers

Clinical information and patient counseling resources

Clinical Overview

LACTIVAE™ (raw milk, oral solution) is unpasteurized cow's milk that has not undergone heat treatment. While regulatory agencies recommend against consumption, recent peer-reviewed research provides important context for evidence-based patient counseling.

Traditional Position: The American Academy of Pediatrics, FDA, and CDC recommend against raw milk consumption due to potential pathogen contamination.24,25

Recent Evidence (2024): A study in the Journal of Epidemiology and Global Health analyzing 16 years of CDC surveillance data (2005–2020) found that hospitalizations from raw milk were typically zero, with a maximum of 10 in any year nationally, and that pasteurized dairy accounted for more deaths than raw milk over the period.18 A separate analysis of 2005–2016 outbreak data found the outbreak rate effectively decreased 74% after adjusting for growth in consumption.19 The 2024 study concluded: “The available evidence conflicts with assumptions of zero risk for pasteurized milk and increasing trends in the burden of illness for raw milk.”18

Modern Safety Data for Counseling

Key findings from recent surveillance analyses for informed patient discussions:18,19

  • Raw milk: 0–2 deaths over 16 years vs. pasteurized dairy: 5 deaths (same period)18
  • California reported zero illnesses from 2016–2020 despite retail grocery store sales18
  • Hospitalizations from raw milk were typically zero, with a maximum of 10 in any single year nationally18
  • Outbreak rates decreased 74% from 2005 to 2016 after adjusting for growth in population and consumption19
  • Raw milk caused fewer deaths (0–2) than cantaloupe (38), peanut butter (10), leafy greens (6), and pasteurized dairy (5) over the same period18
  • In pasteurized-dairy outbreaks, Listeria was more often the agent and the proportions of hospitalizations and deaths were higher than in unpasteurized outbreaks20

Sources: Stephenson MM, et al. J Epidemiol Glob Health. 2024;14(3):787-816.18 Whitehead J, Lake B. PLoS Curr. 2018;10:ecurrents.outbreaks.bae5a0fd685616839c9cf857792730d1.19 Sebastianski M, et al. Can J Public Health. 2022;113(4):569-578.20

Absolute Contraindications

Raw milk consumption should be strongly discouraged in:

  • Infants and children under 5 years: Developing immune systems; higher risk of severe complications including HUS
  • Pregnant women: Risk of Listeria infection leading to miscarriage, stillbirth, or neonatal infection
  • Adults over 65 years: Age-related immune senescence increases infection risk
  • Immunocompromised patients: HIV/AIDS, active cancer treatment, solid organ transplant recipients, chronic corticosteroid use, biologic immunosuppressants, congenital immunodeficiency
  • Chronic conditions affecting immunity: Diabetes mellitus, chronic kidney disease, chronic liver disease, inflammatory bowel disease on immunosuppressants

Microbiological Risks

Campylobacter jejuni

Most common bacterial cause of diarrheal illness. Can lead to Guillain-Barré syndrome (GBS) in 1:1000 infections.

Salmonella spp.

Can cause severe gastroenteritis. Risk of bacteremia particularly in immunocompromised patients. Antibiotic resistance increasingly common.

E. coli O157:H7

Produces Shiga toxin. 5-10% of infections progress to Hemolytic Uremic Syndrome (HUS), leading to acute kidney injury requiring dialysis.

Listeria monocytogenes

Crosses placental barrier. Causes meningitis in neonates and immunocompromised. Case fatality rate 20-30% even with treatment.

Brucella spp.

Causes chronic undulant fever. Can persist for months. Associated with arthritis, endocarditis, neurobrucellosis.

Mycobacterium bovis

Tuberculosis-causing organism. Can cause pulmonary TB and extrapulmonary disease. Difficult to treat.

Clinical Evidence Review

Proposed Benefits (Observational Data)

  • Allergic disease: The GABRIELA and PARSIFAL studies found inverse associations between farm milk consumption and asthma and allergic rhinitis in children; a 2020 meta-analysis of eight studies pooled the asthma association at OR 0.58 (95% CI 0.49–0.69)2,3,1
  • Respiratory infections: In the PASTURE birth cohort, raw milk consumption was associated with about 30% fewer respiratory infections and fever episodes in the first year of life, and lower CRP at 12 months4
  • Nutritional content: Modest reductions in B1, B2, C and folate with pasteurization; native enzymes (alkaline phosphatase, lipase, lactoperoxidase), IgM and a substantial share of lactoferrin are lost; minerals are unaffected11,12,14
  • Fatty acid profile: Grass-fed milk has roughly 2.5 times the omega-3 content of conventional milk, an effect of feeding rather than of pasteurization10
  • Lactose intolerance: A randomized crossover pilot found no benefit of raw over pasteurized milk; counsel patients that this common claim is not supported7

Note: These are observational studies with significant confounding variables (farm exposure, rural lifestyle, overall diet). Causation has not been established. No randomized controlled trials exist.

Evidence Quality Assessment

The quality of evidence for benefits is LOW to MODERATE based on:

  • Primarily observational study design (cannot prove causation)
  • Multiple confounding variables difficult to control
  • No prospective randomized controlled trials
  • Publication bias toward positive findings
  • Limited long-term safety data

Patient Counseling Points

When patients inquire about raw milk, provide balanced, evidence-based counseling:

  1. Acknowledge their interest while clearly explaining documented safety risks
  2. Review absolute contraindications - emphasize risks to vulnerable populations
  3. Discuss the evidence - explain that observed benefits are associations, not proven causation
  4. Explain relative risk - while overall foodborne illness risk may seem low, consequences can be severe (HUS, GBS, pregnancy loss)
  5. Provide risk mitigation strategies if patient chooses to proceed despite counseling
  6. Document the discussion in the medical record, including that risks were explained
  7. Offer alternatives - discuss other ways to achieve nutritional goals with safer options

Adverse Event Reporting

Healthcare providers are encouraged to report suspected foodborne illness cases to:

  • Local health department
  • State health department
  • CDC Foodborne Disease Outbreak Surveillance System

Additional Resources

Clinical StudiesSafety Information

LACTIVAE™ (raw milk, oral solution) is not FDA approved. Raw milk may contain harmful bacteria. Not recommended for: Children under 5, adults over 65, pregnant women, or immunocompromised individuals. Click to read more