The Tudor Dixon Podcast: Is Raw Milk Safe? UV Pasteurization Explained

Date: March 2, 2026
Host: Tudor Dixon
Guest: Bob Comstock, Founder & CEO of Tamarack Biotics

Episode Overview

In this episode, Tudor Dixon investigates the heated debate surrounding raw milk’s safety by exploring the innovative process of UV pasteurization with Bob Comstock, a leading figure in dairy technology. The conversation weighs the health benefits of raw milk against its potential dangers, explains how UV pasteurization retains milk’s beneficial bioactive components while ensuring safety, and discusses its broader implications for public health, allergy prevention, chronic disease, and the future of the dairy industry.

Key Discussion Points & Insights

1. Why Raw Milk is Controversial

• Nutritional Value:
  • Milk — especially raw milk — carries significant immune-system-building components important for infant development and overall health.
    • “Mammals, whether from a human or a cow, feed their infant and establish an infant’s entire immune system through mother’s milk.” (Bob Comstock, 02:57)
• Risk Factors:
  • Despite these benefits, raw milk can be dangerous due to potential contamination with pathogenic bacteria.
    • “Raw milk has a lot of health benefits, but it is inherently not safe because it can contain pathogenic bacteria that can be very harmful.” (Bob Comstock, 03:37)

2. Traditional Pasteurization vs. UV Pasteurization

• Traditional Heat Pasteurization:
  • Commonly used to kill bacteria but reduces valuable nutrients and bioactivity.
  • Dixon comments on the nutritional tradeoff:
    • “You kind of just have a product that you’re drinking that doesn’t have as much value as it had when it came out of the mother cow.” (Tudor Dixon, 03:42)
• UV Pasteurization Explained:
  • Uses ultraviolet light, not heat, to inactivate bacteria/viruses while keeping milk cold and preserving “bioactive” components.
    • “It is actually safer than heat. It kills the bad bugs better. And it does this while the milk’s entirely cold, so we don’t heat the milk at all.” (Bob Comstock, 04:17)
  • The technology passes milk in a thin, fast-moving film under UV light, targeting pathogens without denaturing proteins.
    • “The ultraviolet light can inactivate the bacteria and viruses and not heat the milk at all as it goes through the process.” (Bob Comstock, 05:17)

3. Health Benefits and Scientific Evidence

• Allergy & Autoimmune Disease Prevention:
  • European studies show children who drank 'farm milk' (raw or minimally processed) have lower rates of allergies (asthma, hay fever, eczema).
    • “It wasn’t living on the farm that protected children... it was actually consuming farm milk.” (Bob Comstock, 07:22)
  • Early clinical results (awaiting publication) suggest UV-pasteurized dairy can help prevent allergies like peanut allergy in children. (Bob Comstock, 08:00)
• Broader Chronic Disease Impact:
  • UV-processed dairy ingredients may improve gut health and potentially reduce chronic disease risks related to compromised gut lining.
    • “There’s a lot of evidence that chronic disease starts in your gut.” (Bob Comstock, 24:37)
  • Clinical trials at UC Davis showed immune function restoration in older adults given UV-pasteurized milk protein.
    • “On average the people that had consumed the UV product ... had 120% more [antibody response].” (Bob Comstock, 13:37)

4. Practical Benefits for the Dairy Industry

• Broader Applications:
  • Not limited to liquid milk; suitable for products like yogurts, cheeses, protein powders, colostrum, whey (awaiting further regulatory approval).
    • “Liquid milk only represents about 9% of the dairy products produced today... We can make virtually all of those healthier with UV pasteurization.” (Bob Comstock, 09:18)
• Sustainability & Efficiency:
  • UV processing saves significant energy and reduces cleaning downtime.
    • “You save an enormous amount of energy... you reduce the need to clean so often. And the dairy industry is very excited about this.” (Bob Comstock, 17:41)

5. Regulatory Landscape and Market Potential

• FDA Approval:
  • After 12 years of collaboration, Tamarack Biotics gained FDA approval for raw skim milk UV pasteurization (for use in products like whey and protein concentrates).
    • “We’ve been collaborating with the FDA for more than 12 years to gain this approval... It’s the first in the entire world for an alternative to heat for pasteurizing milk.” (Bob Comstock, 10:05)
• Remaining Hurdles:
  • US laws treat UV as a "food additive" due to conflation with ionizing radiation; efforts are ongoing to update regulations.
  • Support for reforms to allow more rapid adoption (e.g., Sen. Marshall’s bill to modernize 'GRAS' rules).
• Future Vision:
  • Comstock predicts a potential shift to widespread UV-pasteurized milk and dairy on US shelves within 15 years, with major implications for national health.
    • “Your dairy shelf will be exclusively UV pasteurized products in perhaps 15 years from now.” (Bob Comstock, 32:14)

Notable Quotes & Memorable Moments

• On the core dilemma of raw milk:
  • “The people that consume raw milk today are actually not wrong in its health-giving properties. It’s just dangerous.” (Bob Comstock, 34:18)
• On UV light as a metaphor:
  • “In politics, we have a saying it’s ‘sunlight is the best disinfectant.’ Apparently, we should have it in health food too.” (Tudor Dixon, 33:02)
  • “We should have it in our milk. Liquid sunshine. Why wouldn’t we be drinking that?” (Tudor Dixon & Bob Comstock, 33:10)
• On future impact:
  • “Once we have those steps... your dairy shelf will be exclusively UV pasteurized products in perhaps 15 years from now.” (Bob Comstock, 32:14)
  • “That excites me. That is very exciting to me... We are well on our way to kicking the chronic disease in the United States once that happens.” (Tudor Dixon, 32:33)

Timeline of Key Segments

| Timestamp | Topic/Quote | |-------------|----------------------------------------------------------------------------------------------| | 02:57 | The foundational role of milk in developing the immune system | | 03:42 | Trade-offs of traditional pasteurization | | 04:17 | UV pasteurization: “It kills the bad bugs better... while the milk’s entirely cold.” | | 05:17 | Explanation of UV technology in the dairy process | | 07:22 | European studies on farm milk and reduced allergy risk | | 10:05 | First global FDA approval for alternative pasteurization | | 13:37 | Clinical trial results: UV product doubling antibody response in older adults | | 17:41 | Sustainability/equipment advantages for dairies switching to UV | | 24:37 | Chronic disease origin in gut health and the role of UV milk | | 32:14 | Vision for all dairy to be UV pasteurized in the coming 15 years | | 33:02 | “Sunlight is the best disinfectant”—UV as ‘liquid sunshine’ | | 34:18 | Final word on UV’s ability to make raw milk safe without losing benefits |

Conclusion & Takeaways

• UV pasteurization offers the dual advantage of preserving raw milk’s health-promoting properties while making it safe for consumption.
• Potential for reducing food allergies, boosting immune health (notably in children and elderly), and possibly lowering chronic disease rates.
• The technology is energy-saving, streamlines dairy production, and could transform the market—pending further regulatory acceptance.
• “Liquid sunshine” may soon be a reality in American dairy aisles, promising the benefits of raw milk without the risks.

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