Why Raw Milk Standards Matter

Back in 2011 before the Raw Milk Institute (RAWMI) was formed, there were no universal standards for safe raw milk production. Consumer demand for raw milk was expanding, as people learned about the health benefits of raw milk as well as the negative effects of pasteurization. There was a growing body of evidence that children who drink raw milk have decreased rates of asthma, allergies, eczema, ear infections, fever, and respiratory infections. Whereas pasteurized milk is a top food allergen and difficult to digest, raw milk is actually a health-supporting food with rich therapeutic potential that is easily digested by most consumers. Yet, standards for raw milk varied widely from state to state and country to country. 

The occasional foodborne illness outbreaks that could be tied to raw milk continued to tarnish raw milk’s reputation.  And worse yet, some of these outbreaks actually led to life-threatening illnesses. As raw milk’s popularity grew, it was being consumed by a wider segment of the population including immune-compromised people. Whereas average healthy people are likely to have relatively mild symptoms from exposure to foodborne pathogens, immune-compromised people are more likely to have severe symptoms.

Perfectly Safe Food?

It is important to note that there is no such thing as a perfectly safe food. A CDC analysis of foodborne illnesses from 2009-2015 showed that the top food categories commonly linked to illnesses were chicken, pork, and seeded vegetables. Multi-state foodborne illness outbreaks have been linked to foods ranging from unpasteurized apple juice to ground beef to soy nut butter to lettuce.

Pasteurized milk is not perfectly safe, either, and is implicated in foodborne illnesses and outbreaks every year.  Although a wide range of foods including meats and vegetables are known to have the potential for causing foodborne illnesses, only raw milk is targeted by government regulators as a food to be completely avoided. Countries such as Canada and Australia currently have complete bans on raw milk.

Raw Milk Institute Method for Safe Raw Milk

The Raw Milk Institute was founded in 2011 to advance the cause of safe raw milk.  The numerous health benefits of raw milk make it an essential food, which is too important to be allowed to be systematically suppressed by regulators and government agencies. RAWMI sought to better understand the important factors in ensuring that raw milk was safe to consume.

In 2011-12, RAWMI brought together a diverse international group with the purpose of establishing standards for safe raw milk. This group included medical doctors and epidemiologists, nutritional consultants, veterinarians, food safety scientists, raw milk farmers, and raw milk consumers. This collaborative group developed the Raw Milk Institute Common Standards, which were initially released in 2012. 

The RAWMI Common Standards describe a three-pronged approach for the production of safe raw milk which consists of:

• Farmer training and mentoring

• Risk Analysis and Management Plan (RAMP) for the unique conditions on each individual farm

• Stringent yet achievable bacterial test standards for coliforms and Standard Plate Count (SPC)

The Common Standards Work!

Since their release in 2012, the RAWMI Common Standards have become a foundational part of low-risk raw milk production across North America. When farmers are well-trained, use careful production practices as laid out in their individual RAMP, and perform ongoing bacterial testing of their milk, they can produce raw milk that is ultra-low-risk.

Researchers from Canada and Europe have studied the safety of raw milk intended for direct human consumption, and have specifically considered milk from farms who implement the RAWMI Common Standards. They have found that carefully produced raw milk is a low-risk food which is fundamentally different from pre-pasteurized milk. The implementation of the RAWMI Common Standards has led to a significant reduction in raw milk-related illnesses and outbreaks.

The table below contrasts pathogen test data from pre-pasteurized milk vs. raw milk intended for direct human consumption.  As illustrated in the table, pathogen testing of pre-pasteurized milk samples has detected pathogens in up to 33% of samples.  In contrast, there were zero pathogens detected in thousands of milk samples from raw milk intended for direct human consumption. It is clear from this test data that pre-pasteurized milk is categorically different from raw milk intended for direct human consumption.

Data courtesy British Columbia Herdshare Association

Common Standards and RAMP 2020 Update

Knowledge about safe raw milk is continually advancing. With the review of the RAWMI Advisory Board and LISTED farmers, the RAWMI Common Standards and RAMP have recently been updated to include the latest information about best practices in raw milk production. The updated Common Standards and RAMP are also now inclusive of other dairy animals such as goats and sheep. The 2020 Common Standards and RAMP are available here:

The Fascinating History of Milk Kefir

Milk kefir is a fermented probiotic drink that is renowned for its healthful properties. Studies have shown that milk kefir is correlated with a wide range of health benefits, including improved digestion [1], lower blood pressure and cholesterol [2], cancer prevention [1], improved immune systems [3], and reduced asthma and allergies [2]. Milk kefir is a thick and slightly effervescent drink, with a sour, creamy taste.

Milk Kefir is Unique

Although there are many different types of fermented milk around the world [4], milk kefir is unique because it is made with kefir “grains.”  Kefir grains are not true grains, but are actually symbiotic colonies of bacteria and yeast in a protein and lipid matrix. Kefir grains resemble pieces of cauliflower, and they ferment the milk through breaking down the lactose into lactic acid and other beneficial components.

Milk kefir is now widely known and consumed in many countries throughout the world, but for many centuries, milk kefir was a closely-guarded secret of the Northern Caucasus region in Russia. The people of the Northern Caucasus region are renowned for their longevity, with one of the highest proportions of centenarians in the world. Milk kefir is a dietary staple in this region. 

Traditionally, milk kefir was made by combining fresh milk and kefir grains inside goatskin bags. During the daytime, the goatskin bags were hung in the sunshine of the doorways, and prodded or pushed by each person who went through the doorway. As the milk kefir was consumed, more fresh milk was added to the goatskin bag, forming a continuous fermentation cycle.

Grains of the Prophet

The people of the Caucasus mountains have been making kefir for hundreds (or even thousands) of years. In this region, kefir grains are known by the name “Grains of the Prophet” [5]. Their traditional legend about the origin of kefir grains is that the prophet Mohammed gifted kefir grains to the Orthodox Christians in this region [6]. Mohammed is said to have taught the people how to make kefir, and the people revered kefir as a health-promoting food.  

The kefir grains and methods for making kefir were kept secret by people in the Caucasus mountains for many generations. Owning kefir grains was equated with wealth in this region. The people believed that the benefits of kefir would somehow be diminished if the secrets of making kefir were shared outside of their region. Marco Polo is said to have tried kefir, and kefir was prized as a medicinal food, yet the keys to making kefir were not shared until the early 1900’s.

A True Tale of Deceit, Capture, and Retribution

Since milk kefir was a closely guarded secret, how did it ever become more widely known? This is where the story of milk kefir gets even more interesting.

The Russian immunologist Dr. Ilya Ilyich Metchnikoff (who received the Nobel Prize for his work on immunity in 1908) became interested in learning about the causes of the exceptional longevity of the people in the Caucasus region and other regions. Metchnikoff came to the conclusion that soured milk, including milk kefir, was one of the keys to longevity and well-being. Following the publication of Metchnikoff’s book, The Prolongation of Life, in 1907, the All Russian Physicians’ Society became determined to use milk kefir as a medicinal treatment for their patients.

Caucasus Region. Image from freeworldmaps.net

The Blandov brothers, from Moscow Dairy, were commissioned by the All Russian Physicians’ Society to obtain kefir grains from the tribes in the Caucasus mountains. However, the tribes refused to sell any kefir grains to the Blandov brothers. Undaunted, the brothers came up with a scheme to obtain the kefir grains: they would send a beautiful woman to the court of tribal Prince Bek-Mirza Barchorov, and with her allure she would obtain the kefir grains. Irina Sakharova, an employee of the Blandov brothers, was chosen for this important mission [5].

Irina Sakharova and Prince Barchorov, 1908. Image from Revolution Fermentation

Although Irina succeeded in attracting the interest of Prince Barcharov, he refused to give her any kefir grains. Irina departed from the Prince, but tribesmen were sent to capture her with the intention of forcing her to marry the Prince. The Blandov brothers mounted a rescue of Irina before the forced marriage could take place.

When Irina presented her grievance before the Czar, Prince Barcharov was ordered to make retribution to Irina. Although she was offered gold and jewels, Irina refused. She could only be compensated for what she had endured in one way: with kefir grains. The Czar ordered Prince Barcharov to give Irina 10 pounds of kefir grains!

Kefir as Medicine

Once the Blandov brothers had the milk kefir grains, they began making kefir for the All Russian Physicians’ Society. Kefir was used in Russian hospitals to treat a wide variety of conditions including digestive disorders, cancer, artherosclerosis, and tuberculosis [5]. Even now, kefir is routinely used for hospital patients, infants, and infirm people in Eastern Europe [7].

By the 1930’s, kefir was being produced on a large scale to meet widespread public demand in Russia. It took several decades for the commercial process of making kefir on a large scale to be perfected. Milk kefir was introduced to the western world by the 1960’s. Recently, milk kefir has become a much sought-after food with a rapidly growing global market.

Currently, many health-conscious consumers use kefir grains to easily produce their own milk kefir at home. Unlike the commercial kefir that was developed in Russia, most of the commercially-prepared kefir on the market today is made with direct-set powdered kefir cultures. These powdered cultures contain considerably fewer probiotic strains than kefir grains, but they produce a more consistent commercial product. From its ancient origins to today, milk kefir is a superfood that has enriched the health of humanity. 

References

[1] Zeynep B. Guzel-Seydim, Tugba Kok-Tas, Annel K. Greene & Atif C. Seydim. "Review: Functional Properties of Kefir." Critical Reviews in Food Science and Nutrition, 51:3, 261-268, 2011. doi: 10.1080/10408390903579029

[2] Bourrie, Benjamin C T et al. “The Microbiota and Health Promoting Characteristics of the Fermented Beverage Kefir.” Frontiers in microbiology vol. 7 647, 2016. doi:10.3389/fmicb.2016.00647

[3] de Oliveira Leite, Analy Machado et al. “Microbiological, technological and therapeutic properties of kefir: a natural probiotic beverage.” Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] vol. 44,2 341-9, 2013. doi:10.1590/S1517-83822013000200001

[4] “Fermented milk products”, Wikipedia, Wikimedia Foundation, August 11 2020. https://en.wikipedia.org/wiki/Fermented_milk_products

[5] Shavit, E. “Renewed Interest in Kefir, the Ancient Elixir of Longevity.” Fungi, vol. 1-2, 2008. http://www.medicinabiomolecular.com.br/biblioteca/pdfs/Doencas/do-1175.pdf

[6] Seifi, P. “Magical Kefir.” Russian Life website, 2016. https://russianlife.com/stories/online/magical-kefir/

[7] Nielsen B, Gürakan GC, Unlü G. “Kefir: a multifaceted fermented dairy product.” Probiotics Antimicrob Proteins 6:123–135, 2014. https://pubmed.ncbi.nlm.nih.gov/25261107/ 

Antibiotic Resistant Genes in Raw Milk - What Does the Data Really Mean?

Government-Funded Study Finds ZERO Pathogens in Raw Milk Samples!

That’s what the headlines should have read.

Instead, the study was titled, “Reservoirs of antimicrobial resistance genes in retail raw milk” [1]. The study, funded by the National Institutes of Health (NIH) and the United States Department of Agriculture (USDA), was not able to find any pathogens in raw milk. So instead they focused on trying to create fear of antibiotic resistant genes which were found to proliferate when raw milk was allowed to sit at room temperature for hours.  

Antibiotic Resistant Genes are Ubiquitous

Antibiotic resistant genes are everywhere. They’ve been found in every environment, including pristine habitats that have been virtually untouched by humans such as Antarctica [2, 3].  They’re even found in the dust of buildings [4].

“Antibiotics are ancient, dating back hundreds of millions of years. Resistance is therefore equally ancient, and the number of genes in the resistome is a reflection of the continuous co-evolution of small molecules in natural environments and microbial genomes.”  

-Gerard Wright, Nature Reviews Microbiology 2007 [3]

Given that they are ubiquitous in the environment, it is no surprise that there are antibiotic resistant genes in many foods [5]. Breast milk, too, contains antibiotic resistant genes carried on bacteria found in the raw breast milk [6].

Breastmilk and Antibiotic Resistant Genes

Researchers in Helsinki found that, even though breast milk contains antibiotic resistant genes, babies who were breast fed actually have less antibiotic resistant genes in their guts than babies who weren’t breastfed or who terminated breastfeeding early [7].  Researchers attribute this benefit to the fact that breastmilk promotes the growth of beneficial bacteria such as bifidobacteria, which can then outcompete the bacteria carrying antibiotic resistant genes. Like breast milk, cow’s milk has also been shown to support the growth of bifidobacterial [8]. 

Potential Dangers of Antibiotic Resistant Genes

Antibiotic resistant genes can pose potential health threats in specific circumstances. When antibiotics are taken, the intestinal microbiome is disrupted as both beneficial and harmful bacteria are killed off. This weakens our immune systems overall [9]. If there are antibiotic resistant bacteria present in the gut, taking antibiotics actually allows these bacteria to proliferate in the absence of competing bacteria. There can then be infection or illness which is not able to be respond to antibiotics. Antibiotic resistance is now responsible for the deaths of tens of thousands of people every year in the USA alone [10].

For example, C. diff. colitis (clostridium difficile colitis) is infection of the colon that results from disruption of the healthy bacteria in the gut, usually as a result of taking antibiotics. C. diff. can cause diarrhea, abdominal pain, fever, bloody stools, kidney failure, and even death. One of the best treatment options for severe C. diff. infections is fecal transplant. Severely ill C. diff. patients have a 92% cure rate from fecal transplants, which provide a healthy flush of poop from a healthy human donor into the colon [11]. The fecal transplant recolonizes the gut with healthy bacteria.

Zero Pathogens in Raw Milk Samples

Coming back to the study funded by the NIH and USDA [1], researchers found that antibiotic resistant genes proliferated in raw milk that was allowed to sit at room temperature for hours.  Their research showed that raw milk which was kept refrigerated had low levels of antibiotic resistant genes.  What this actually demonstrates is that raw milk from around the country is being produced very cleanly, resulting in low bacteria counts.

Most of the potential beneficial bacteria to be found in milk is from either fecal or soil origin. Yes…dirt is very good for you and a little poop does not hurt either [12]. It has long been understood that living in a farm environment has substantial health benefits over living in urban environments [13]. However, in our modern world with immune-compromised consumers, the raw milk standards have had to change.

For raw milk to be legal for sale and safe for the general public (including immune-compromised people), it must be very hygienic. It can no longer have dirt or poop in it. So, all that is left is clean, delicious, safe raw milk from deep inside the cow’s or goat’s udder. The government-funded study tested retail raw milk samples and they found ZERO pathogens! This should be celebrated as true progress towards farm cleanliness and testing.

“[Raw] milk samples in the present study were screened for Listeria spp., Salmonella enterica, and E. coli O157:H7. None were detected.”

-Liu et al. Microbiome 2020 [1]

Fermenting Raw Milk

For thousands of years, people have known how to ferment or “clabber” raw milk by simply leaving it at room temperature instead of refrigerating it.  In the absence of refrigeration, traditional cultures often consumed raw milk in fermented form [14]. Such milk would have contained ample beneficial lactic acid bacteria from the small amounts of dirt or manure that would have been present on the udders and teats of the milk animals, and would therefore quickly ferment at room temperature. 

In modern times, people have largely lost their taste for spontaneously fermented, sour raw milk. Raw milk farmers and consumers aim to maintain the sweet flavor of fresh milk as long as possible. The farmers do this by thoroughly cleaning the udders and milking equipment to ensure the milk will have low bacteria counts [15], as well as by rapidly chilling the milk and keeping it cold.  Consumers, too, work to make sure their raw milk is kept cold, even during transport.  Keeping raw milk cold allows it to retain its sweet taste and gives it a longer shelf life.

One useful point of information from the government-funded study was the finding that “spontaneous fermentation does not grow beneficial lactic acid bacteria”. This means that the very clean, low-bacteria count raw milk which is currently available in the USA may not ferment very well in the traditional way. The flavor of spontaneously fermented raw milk is not generally palatable to the modern raw milk consumer. Thus, most raw milk consumers actually work to make sure that their raw milk does not ferment and stays fresh and sweet.

Generally, raw milk consumers who intentionally ferment their milk will do so by adding beneficial bacteria such as yogurt starter or kefir grains. Kefir, in particular, is associated with a wide number of health benefits including lower blood pressure, decreased insulin resistance, tumor suppression and prevention, and improved composition of the gut microbiota [16-19].

The Bottom Line

The NIH and USDA-funded study found no pathogens in raw milk. This is further confirmation of the findings published in the January 2020 Journal of Epidemiology and Infection which concluded that “raw milk can be produced with a high level of hygiene and safety” [20].

The government-funded study focused on antibiotic resistant genes which can proliferate in raw milk that is left at room temperature for hours. However, it is no surprise that raw milk, like breastmilk and many other foods, contains antibiotic resistant genes. The presence of antibiotic resistant genes is not an issue unless the balance of good bacteria in the gut gets disrupted. Both breastmilk and raw milk are known to promote the growth of beneficial bacteria such as bifidobacteria. The study completely ignored the growing body of evidence that has shown that children who drink raw milk have decreased rates of asthma, allergies, eczema, ear infections, fever, and respiratory infections [21-23].

The best way to beat antibiotic resistant bacteria is to protect and nourish the biodiverse bacteria in the gut. You can do this by avoiding antibiotics and processed foods, which damage the gut and immune system [24, 25]. Instead, eat plenty of whole foods such as raw milk, milk kefir, grassfed beef, eggs, and fresh or fermented vegetables and fruits to feed the beneficial bacteria in the gut and allow it to thrive [26].

References

[1] Liu, J., Zhu, Y., Jay-Russell, M. et al. (2020) Reservoirs of antimicrobial resistance genes in retail raw milk. Microbiome 8, 99 (2020). https://doi.org/10.1186/s40168-020-00861-6

[2] Durso LM, Miller DN, Wienhold BJ (2012) Distribution and Quantification of Antibiotic Resistant Genes and Bacteria across Agricultural and Non-Agricultural Metagenomes. PLOS ONE 7(11): e48325. https://doi.org/10.1371/journal.pone.0048325

[3] Wright, G. (2007) The antibiotic resistome: the nexus of chemical and genetic diversity. Nat Rev Microbiol 5, 175–186 (2007). https://doi.org/10.1038/nrmicro1614

[4] Ben Maamar S, Glawe AJ, Brown TK, Hellgeth N, Hu J, et al. (2020) Mobilizable antibiotic resistance genes are present in dust microbial communities. PLOS Pathogens 16(1): e1008211. https://doi.org/10.1371/journal.ppat.1008211

[5] Fogler K, Guron GKP, Wind LL, Keenum IM, Hession WC, Krometis L-A, Strawn LK, Pruden A and Ponder MA (2019) Microbiota and Antibiotic Resistome of Lettuce Leaves and Radishes Grown in Soils Receiving Manure-Based Amendments Derived From Antibiotic-Treated Cows. Front. Sustain. Food Syst. 3:22. doi: 10.3389/fsufs.2019.00022

[6] Pärnänen, K., Karkman, A., Hultman, J. et al. (2018) Maternal gut and breast milk microbiota affect infant gut antibiotic resistome and mobile genetic elements. Nat Commun 9, 3891. https://doi.org/10.1038/s41467-018-06393-w

[ 7] Ravindran S. (2019) Breastfeeding May Help Protect Babies from Antibiotic-Resistant Bacteria. SPLASH! milk science update: January 2019 Issue. https://milkgenomics.org/article/breastfeeding-may-help-protect-babies-from-antibiotic-resistant-bacteria/

[8] Rova S, Rada V, Marsik P, Vlkova E, Bunesova V, Sklenar J, Splichal I. (2011) Growth of bifidobacteria and clostridia on human and cow milk saccharides. Anaerobe 17(5). https://doi.org/10.1016/j.anaerobe.2011.07.009.

[9] McAfee M, Smith S. (2020) Immunity, the Immune System, and Raw Milk. Raw Milk Institute website. https://www.rawmilkinstitute.org/updates/immunity-the-immune-system-and-raw-milk

[10] Centers for Disease Control and Prevention. (2019) More People in the United States Dying from Antibiotic-Resistant Infections than Previously Estimated. CDC website. https://www.cdc.gov/media/releases/2019/p1113-antibiotic-resistant.html

[11] Brandt L. J. (2012). Fecal transplantation for the treatment of Clostridium difficile infection. Gastroenterology & hepatology, 8(3). https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3365524/

[12] Akst, J. (2020) The influence of soil no immune health. The Scientist website. https://www.the-scientist.com/news-opinion/the-influence-of-soil-on-human-health-66885

[13] Wells, AD, Poole JA, and Romberger DJ. (2014) Influence of farming exposure on the development of asthma and asthma-like symptoms. International immunopharmacology, 23(1), 356–363. https://doi.org/10.1016/j.intimp.2014.07.014

[14] Levi, J. (2014) The Smoke Cured Fermented Milk of the Samburu. Presentation at Wise Traditions London 2014. https://westonaprice.london/videos/samburu/

[15] Smith, S. (2020) Udder Preparation for Raw Milk. Raw Milk Institute website. https://www.rawmilkinstitute.org/updates/udder-preparation-for-raw-milk

[16] Bourrie BC, Willing BP, and Cotter PD. (2016) The Microbiota and Health Promoting Characteristics of the Fermented Beverage Kefir. Frontiers in microbiology, 7, 647. https://doi.org/10.3389/fmicb.2016.00647

[17] Bellikci-Koyu E, Sarer-Yurekli BP, Akyon Y, Aydin-Kose F, Karagozlu C, Ozgen AG, Brinkmann A, Nitsche A, Ergunay K, Yilmaz E, and Buyuktuncer Z. (2019) Effects of Regular Kefir Consumption on Gut Microbiota in Patients with Metabolic Syndrome: A Parallel-Group, Randomized, Controlled Study. Nutrients, 11(9), 2089. https://doi.org/10.3390/nu11092089

[18] Guzel-Seydim ZB, Kok-Tas T, Greene AK, Seydim AC. (2011) Review: functional properties of kefir. Crit Rev Food Sci Nutr. 51(3):261-268. doi:10.1080/10408390903579029

[19] de Oliveira Leite AM, Miguel MA, Peixoto RS, Rosado AS, Silva JT, and Paschoalin VM. (2013) Microbiological, technological and therapeutic properties of kefir: a natural probiotic beverage. Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology], 44(2), 341–349. https://doi.org/10.1590/S1517-83822013000200001

[20] Berge AC, Baars T. (2020) Raw milk producers with high levels of hygiene and safety. Epidemiology and Infection. 148:e14. doi:10.1017/S0950268820000060

[21] Loss G, Apprich S, Waser M, Kneifel W, Genuneit J, Büchele G, Weber J, Sozanska B, Danielewicz H, Horak E, Joost van Neerven RJ, Heederik D, Lorenzen PC, von Mutius E, Braun-Fahrländer C; GABRIELA study group. (2011) The protective effect of farm milk consumption on childhood asthma and atopy: The GABRIELA study. Journal of Allergy and Clinical Immunology. 128 (4): 766-73. https://www.jacionline.org/article/S0091-6749(11)01234-6/fulltext

[22] Perkin MR and Strachan DP. (2006) Which aspects of the farming lifestyle explain the inverse association with childhood allergy? Journal of Allergy and Clinical Immunology. 2006; 117 (6):1374-81. https://www.jacionline.org/article/S0091-6749(06)00651-8/fulltext

[23] Loss G, Depner M, Ulfman LH, Joost van Neerven RJ, Hose AJ, Genuneit J, Karvonen M, Hyvärinen A, Kaulek V, Roduit C, Weber J, Lauener R, Pfefferle PI, Pekkanen J, Vaarala O, Dalphin JC, Riedler J, Braun-Fahrländer C, von Mutius E, Ege MJ; PASTURE study group. (2015) Consumption of unprocessed cow's milk protects infants from common respiratory infections. Journal of Allergy and Clinical Immunology.  135 (1): 56-62. https://www.jacionline.org/article/S0091-6749%2814%2901274-3/fulltext

[24] Watanabe K, Gilchrist CA, Uddin J, Burgess SL, Abhyankar MM, Moonah SN, Noor Z, Donowitz JR, Schneider BN, Arju T, Ahmed E, Kabir M, Alam M, Haque R, Pramoonjago P, Mehrad B, Petri WA. (2017) Microbiome-mediated neutrophil recruitment via CXCR2 and protection from amebic colitis. PLOS Pathogens; 13 (8): e1006513 DOI: 10.1371/journal.ppat.1006513

[25] Paula Neto HA, Ausina P, Gomez LS, Leandro JGB, Zancan P, Sola-Penna M. (2017) Effects of Food Additives on Immune Cells As Contributors to Body Weight Gain and Immune-Mediated Metabolic Dysregulation. Front Immunol.8:1478. doi:10.3389/fimmu.2017.01478

[26] McAfee M. (2020) Build Immune System Strength With Whole Foods: Drink Raw Milk! Raw Milk Institute website. https://www.rawmilkinstitute.org/updates/whole-foods-build-immune-system-strength

Why Humans Drink (RAW) Milk

Why Did Ancient Humans Start Consuming Milk From Other Mammals?

10,000 years ago, early humans spent much of their time hunting, gathering, or fishing for food. Obtaining food was the dominant preoccupation of their lives. Imagine the reality for humans living prior to the advent of civilization. You can picture them living in crude shelters, wearing animal skins and using few tools. It was not like a 14-day survival challenge where they could call for a medic and be rescued. Eating and surviving were lifelong challenges.

You can hear the crying of babies and children that were hungry. Those cries are universal and have not changed over the millennia. The natural instinct to provide for the next generation was a compelling mandate which drove instinctual and natural innovation.

Early humans nursed their young, just as all mammals do. Nursing provided optimal nutrition for babies to survive and thrive. Breastmilk is a form of raw milk, serving as a complete food source that is perfectly designed to sustain life.

People observed animals in the wild nursing their young just as they nursed their own young. By capturing goats and aurochs (ancestral cow breeds), the people were able to collect their milk in pottery vessels. These humans would have learned quickly that milk from other animals was a complete, nutritious food. Being purposely designed to sustain life like no other food, this raw milk provided a steady source of readily available food for ancient humans.

Without refrigeration, any milk that wasn’t consumed quickly would naturally ferment into cheese curd and whey. The milk storage vessels likely contained bacteria cultures from previous milkings, and hence the culturing process was naturally reinforced with these bacteria.  The resultant curds could be stored and consumed over time. Curd contained a complete set of microbiome-friendly nutrients, and would be easy to digest due to its biodiversity. The humans could now bring along with them a portable supply of steady food. As long as they had sunshine, water, grass or shrubbery, and a mammal, they had food.  

Scientists have ample evidence that humans began drinking raw milk from animals at least 10,000 years ago. The evidence for the early use of animal milk is found in ancient clay pottery vessels, dental remains of Neolithic humans, and bone analysis of animal remains. Ancient baby bottles provide evidence that milk from animals was used to feed human infants at least 8,000 years ago.

The origin and dispersal of domestic livestock species in the Fertile Crescent. (Zeder, Melinda)

These agriculture-based civilizations were so successful that they spread across the Mediterranean region, Europe, Asia, and the Middle East over the next few thousand years. Humanity continued to domesticate additional species of animals; throughout history, many species have been utilized for their milk including camels, cows, goats, sheep, donkeys, horses, water buffalo, reindeer, and other mammals.

Those who consumed milk had a competitive advantage over those that did not have a steady source of readily available food.  This steady supply of food allowed for settlements and communities to develop. People no longer had to spend most of their time acquiring food, and could instead use their brain power to drive the development of sophisticated structures and towns. Domesticated animals became high value assets. As civilization advanced, those that owned milking mammals became wealthy and became the source of food for communities.

Selection of late Bronze/early Iron Age feeding vessels.(J Dunne, et al.)

Lactase and Genetic Adaptations for Milk

The domestication of mammals and consumption of their raw milk provided a source of biodiverse colonies of bacteria for the human gut. When people began drinking raw milk at least 10,000 years ago, these biodiverse bacteria began the genomic adaptation for lactase production and lactase persistence genes. Lactase is the enzyme responsible for breaking down lactose into digestible form. 

Humans who first began to consume milk from other mammals had not yet developed the lactase persistence gene. Nonetheless, they likely would have been able to readily digest raw milk because it facilitates the production of lactase enzyme in the intestinal tract. Archaeological evidence shows that humans were consuming raw milk for thousands of years before the widespread appearance of the lactase-persistence gene. This has led many researchers to the probably erroneous conclusion that Neolithic humans must have been fermenting or culturing milk to reduce or remove its lactose content.  

In reality, “lactose-intolerance” is primarily pasteurization intolerance.  Since raw milk facilitates the production of lactase, it is not likely that there were widespread issues with lactose intolerance in Neolithic populations. In all likelihood, these early populations would have been able to consume milk in its fresh form straight from the mammals, as well as in the lacto-fermented curds and whey which would form quickly without refrigeration.  

Stone carving at the ancient Sumerian temple of Ninhursag showing typical dairy activities. (Dorling Kindersley, The Visual Dictionary of Ancient Civilizations)

The competitive advantage provided by raw milk is not to be understated. Raw milk allowed humans to thrive in conditions where survival would have been difficult. It allowed them to migrate and proliferate from region to region with a steady supply of food. Those populations that consumed milk further adapted by developing lactase-persistence genes. Scientists now believe that the lactase-persistence genes were spread through natural selection. This means that the reproductive capacity and/or survivability of ancient raw milk drinkers was substantially increased compared to non-milk-drinking populations. The lactase-persistence genes would have facilitated the easy digestion of milk in many forms, including boiled or cooked milk. There is current evidence of lactase persistence genes in people from regions of Africa, Europe, Asia, and the Middle East. However, even those without the lactase-persistent gene can generally digest raw milk because of the raw milk bacteria that create lactase for the human gut. 

Pasteurization: A Technological Solution to a Manmade Problem

A 19th century illustration of "swill milk" being produced: a sickly cow being milked while held up by ropes. (Frank Leslie’s Illustrated Weekly)

By the mid-1800’s in America, some raw milk production had shifted away from farms and into highly-populated cities. Big cities did not have pastures or clean water, and the cows in city dairies were kept in filthy conditions with poor nutrition and poor animal health. Many of these cows were fed byproducts from alcohol distilleries, leading to illness in the cows. Raw milk, which had been safely consumed by humans for nearly 10,000 years, had become a source of deadly diseases such as tuberculosis, typhoid, diphtheria, and scarlet fever. 

In the late 1800's, it was recognized that raw milk being produced in these conditions was dangerous, and two solutions were proposed.  Pasteurization was one of the solutions which was proposed to eliminate pathogenic bacteria in the milk coming from these filthy conditions. The other solution was to actually produce the milk in hygienic conditions with healthy animals.  

It was known that raw milk was a superior source of nutrition for infants and children, so the American Association of Medical Milk Commissions (AAMMC) was established in the late 1800's to ensure a safe supply of hygienic raw milk. The AAMMC was in operation for nearly a century, certifying medical raw milk for use in hospitals and for feeding infants and children.  

Pasteurization was ushered in to address filthy conditions and unhealthy cows in cities.  It answered the question of how to commercialize dirty milk, rather than spending the time and energy it would take to produce clean milk from healthy cows. Clearly, over time, the pasteurization movement gained traction and became the standard for ensuring "safe" milk, yet pasteurization is known to degrade and damage many of the nutrients in milk. 

Raw Milk’s Role in 2020

Now, in 2020, we are in a time of widespread immune depression, comorbidities, and compromised health. For most Americans, the competitive advantage of raw milk consumption has never been a reality. Raw milk’s immune-building properties and microbiome friendly traits have been forgotten. 

Instead, we live in the age of immune-destructive pharmaceuticals and antibiotics. Although life-saving  in certain applications, these drugs also depress and damage the immune system and gut microbiome. Antibiotic resistance is now responsible for the deaths of tens of thousands of people every year in the USA alone. Furthermore, pasteurized milk is now recognized as a top food allergen and difficult to digest.  

Raw milk is an innate part of our healthy immune history, and is largely missing in our sterile, sugar-laden, preservative-laced, antibiotic-abusing modern diets and medical culture.  Safe raw milk has been rediscovered by those who study history and know the role of raw milk as a nourishing whole food.  Raw milk that is carefully and intentionally produced for direct human consumption is wholly different from milk being produced for pasteurization.  

So, the next time that someone says, “milk is for cows and not for humans,” share with them the intricate link between civilization and raw milk, and the competitive advantage that raw milk provided to humanity for 10,000 years. Many of these misinformed humans are in dire need of gut microbiome rescue like never before. Reach out to them with love, compassion and humanity. They need our support, nourishment, and education.    

Two Types of Raw Milk

My family has been drinking raw milk for nearly 15 years. I drank raw milk through both of my pregnancies, and have raised both of my kids on raw milk since they were weaned from breastmilk as toddlers. I have purposely chosen raw milk for my family because of its exceptional health benefits and animal welfare.

Studies performed in Europe have shown that children who drink raw milk have decreased rates of asthma, allergies, eczema, ear infections, fever, and respiratory infections. Nonetheless, when I tell people that my family drinks raw milk, I often hear responses such as:

“Raw milk is dangerous!”

“Doesn’t raw milk make people sick?”

“I heard that raw milk was bad for you.”

The reason for raw milk’s negative reputation is that there are two types of raw milk!  Raw milk that is intended for pasteurization is quite different than raw milk produced for direct human consumption.

Raw Milk Intended for Pasteurization

When my family drives past a nearby dairy that produces milk for pasteurization, we are struck by the horrendous smell and filthy living conditions.  The animal yard is completely covered with manure. The cows have no choice but to lie and stand in manure all day. It is truly disgusting to think that this operation is producing food for families!

Raw milk that is “intended for pasteurization” is typically sourced from Concentrated Animal Feeding Operations (CAFOs). This type of milk is actually defined under the Federal Grade A Pasteurized Milk Ordinance (PMO).  Such milk is being produced in conditions where animal health is often compromised and mastitis (udder infection) is common.  Antibiotics are often utilized in these herds, and hormones are used to stimulate higher levels of milk production. The animals are housed in an abundance of manure, and there is a corresponding high rate of pathogens.

This milk is intended to be pasteurized to kill pathogenic bacteria, and as such, it is often produced with little care towards preventing contamination with pathogens. Furthermore, this type of milk is generally commingled with milk from multiple dairies, which increases the risk of pathogenic exposure. Studies have shown that up to 33% of this type of milk tests positive for pathogens. This type of raw milk is clearly unsafe to consume. I would never feed this type of raw milk to my family.

Raw Milk Intended for Direct Human Consumption

When my family visits the dairy that produces the raw milk that we drink, we see a very different setting from the CAFO dairy. The cows at the raw milk dairy are happily grazing on lush pastures. The cows look clean and healthy. The milk is bottled on-farm, and we can see that the milk bottling room is clean and neat. There is a stark contrast between the CAFO dairy and this raw milk dairy.

Raw milk that is carefully and intentionally produced for direct human consumption is wholly different from raw milk being produced for pasteurization. Raw milk farmers carefully manage the cleanliness and hygiene of the farm from grass-to-glass, with much care to ensure that the animals are healthy and the milk is clean.

From the health of the herd, to cleanliness of the milking parlor, to the specific cleaning processes for the milk line, to ensuring rapid milk chilling, to regularly testing their milk, and everything in between, raw milk farmers are dedicated to taking their farm management to the next level in order to ensure that their raw milk is safe to consume.

Although there are no federal standards for raw milk, the Raw Milk Institute has established Common Standards for raw milk that is intended for direct human consumption.  This type of raw milk is tested often and held to rigorous standards to ensure that it is being produced in a way that discourages pathogen growth.

Where Do Pathogens in Milk Originate?

The four main pathogens in milk that can cause human illness are E coli 0157:H7, listeria mono, salmonella, and campylobacter. The two most common sources of pathogens in milk are manure and mastitis. It is estimated that one-third of CAFO dairy cows have mastitis, and the cows in CAFOs stand and lie in manure all day. Clearly, this type of dairy environment is primed for pathogen growth.

On the other hand, the raw milk dairy environment is carefully managed to prevent pathogens in the milk. These farmers manage the health of their herd to prevent mastitis, and ensure that the milk from any animals that are showing signs of mastitis is not used for direct human consumption.  Raw milk farmers meticulously clean the udders before milking to ensure that no manure or other contaminants are present. They also rigorously and frequently clean their milking machines, milk lines, and milk tanks.

Take a look at the milk filters shown below.  Even with just a quick look, it is apparent that the milk being produced with the intent to be pasteurized is clearly not clean, whereas the milk filter from the intentionally-produced raw milk looks impeccable. (To be fair, there are some dairy farmers who produce milk for pasteurization that is much more hygienic than most others. However, that milk is still commingled with milk from other dairies, many of which are likely to not use hygienic practices.)

Comparison of Bacterial Test Standards for Two Types of Raw Milk

Okay, I’m gonna get technical here.  If reading about standards and looking at charts is not your thing, you can skip ahead to the last section. :)

Two important types of bacterial testing for milk are Standard Plate Count (SPC) and coliform count. The SPC is a measure of the total number of aerobic bacteria in the milk. High SPC numbers can indicate dirty milking equipment, poor milk chilling, and/or poor udder preparation.

Coliform count measures the amount of coliform bacteria present in the milk. Coliform counts measure the overall hygiene and cleanliness of the milk. High coliform counts generally indicate the presence of manure or other environmental contaminants on the udders or milking equipment. High coliform counts are likely to correspond to the presence of pathogens in the milk.

According to the PMO, pre-pasteurized milk is allowed to have up to 100,000 colony-forming units (cfu) of bacteria per mL in SPC testing. The PMO does not have a standard for how many coliforms are allowed in pre-pasteurized milk, but the state of California allows coliforms up to 750 cfu/mL of milk.

In comparison, the Raw Milk Institute Common Standards call for <5,000 cfu/mL for SPC testing, and <10 cfu/mL in coliform testing. As you can see in the chart below, intentionally-produced raw milk is measurably quite different from pre-pasteurized raw milk, and even meets stricter standards than pasteurized milk.

The Raw Milk Institute has been collecting monthly Standard Plate Count and Coliform Count data from its LISTED raw milk dairies since 2012.  This dataset of thousands of test results shows that raw milk farmers who have been properly trained can routinely meet the stringent standards set forth in the Common Standards.

Research on Raw Milk Safety

Recently, researchers from Canada and Europe have studied the safety of raw milk intended for direct human consumption. They have found that carefully produced raw milk is a low-risk food which is fundamentally different from pre-pasteurized milk. 

The table below contrasts pathogen test data from pre-pasteurized milk vs. raw milk intended for direct human consumption.  As illustrated in the table, pathogen testing of pre-pasteurized milk samples has detected pathogens in up to 33% of samples.  In contrast, there were zero pathogens detected in thousands of milk samples from raw milk intended for direct human consumption. It is clear from this test data that pre-pasteurized milk is categorically different from raw milk intended for direct human consumption.

Data courtesy of the British Columbia Herdshare Association

Not All Raw Milk Is Dangerous!

It is clear that raw milk produced with the intention to be pasteurized is likely to contain dangerous pathogens. This type of raw milk is unsafe, and I would never feed it to my family. Unfortunately, this type of raw milk’s negative reputation has led many to believe that all raw milk is unsafe to consume.

It is important to note that there is no such thing as a perfectly safe food. An analysis of foodborne illnesses from 2009-2015 showed that the top food categories commonly linked to illnesses were chicken, pork, and seeded vegetables. Pasteurized milk is not perfectly safe, either, and is implicated in foodborne illnesses and outbreaks every year.  The CDC outbreak and illness data which is used to assert that raw milk is unsafe does not distinguish raw milk intended for pasteurization from raw milk that is carefully produced and intended for direct human consumption.

It is clear from the above-presented test data that intentionally-produced raw milk is a low-risk food. In my family, we purposely choose raw milk for its superior nutrition and significant health benefits over pasteurized milk.  Raw milk contains greater bioavailable nutrients than pasteurized milk, as well as a wide array of beneficial enzymes and probiotics which are known to have benefits on the immune system and gastrointestinal tract.   

Immunity, the Immune System, and Raw Milk

Four Variables for Pathogenic Illness

Masks, social distancing, handwashing, testing: in the last few months, America has awoken to a whole new reality with an awareness that a compromised immune system is risky and dangerous. We are now talking about immune systems and compromised immunity like never before.  Yet, we haven’t been talking about host immunity, and why people have compromised immune systems.

We are the HOST and we have an immune system that protects us if it is strong. Bacterial, fungal, and viral pathogens need a host to survive and thrive, yet pathogens do not cause illness in every host. Scientists and doctors agree that in order for a pathogen to cause illness, four variables must align:

• A pathogen must be present

• The pathogen must be virulent and capable of producing harmful effects

• The pathogen load must be high enough

• The HOST  must be susceptible to the pathogen

Misplaced Focus on Compromised Immune Systems

Health professionals and the news media have avoided  discussion of our host immune systems, which naturally protect us all the time from pathogenic threats. Instead, they talk about how people with compromised immune systems and comorbidities (such as high blood pressure, diabetes, heart disease, and obesity) are being disproportionally affected by COVID19. Our American lifestyle and diet has predisposed large swaths of our population to having compromised immune systems and comorbidities.

Masks and social distancing aim to reduce the pathogen load, yet this narrative neglects the superior aim of strengthening the host. We have little  control over the strength of the COVID19 pathogen, and we can’t live behind masks forever, as we attempt to reduce pathogen load by social distancing and mask wearing  But what we can do is strengthen the host, and that means strengthening our own immune systems.

The best way to immunity is through

strong immune systems.

It is rare that healthy people with strong immune systems are significantly sickened by COVID19. As more and more antibody testing is performed on broad sectors of our population, it is being found that huge numbers of people already have COVID19 antibodies, even though they had no idea that they’d been exposed.  COVID19 has already become part of their adaptive immune response. “Herd immunity” is building whether we stand six feet apart, wash our hands or wear a mask….it is happening whether we like it or not.  The bigger question is: Are Americans up to facing this HOST threat?

Immune System Primer

The immune system is our body’s defense system that protects us from foreign invaders such as pathogenic bacteria and viruses. Immunity is developed by the immune system, and provides protection against illness from specific pathogens. Immunity from specific illnesses is achieved through both the innate and adaptive immune systems.

Image from MicrobeNotes.com

The innate immune system is a rapid–response, whole body protective system that blocks, controls, neutralizes and eliminates pathogenic threats. Elements of the innate immune system include our skin, white blood cells, killer T cells, the gut microbiome, mucus producing cells, tear duct lactoferrin, mucus membranes, lymphocytes, phagocytes, MAST cells, and cytokines. Our innate immune systems  protect us all the time if they are strong and functioning well. The very last thing you would ever want to do is injure or disable this system. Yet, that is exactly what we do whenever we take symptom relief medications which block mucus production or other natural systems that protect us. Antibiotics have been abused so badly that we now have tens of thousands of people that die every year from antibiotic-resistant bacteria. Our first-world innate immune systems and microbiomes have been damaged and  can no longer protect us.

The adaptive immune system is a slow-response system that creates specific immunity after the innate immune system has been the first line of defense. The adaptive immune system creates a long-term memory of the invader, thereby producing specialized antibodies against each specific invader. Antibodies can be likened to battle-hardened, experienced warriors who are ready to quickly protect against any similar attack that may come your way in the future. 

Vaccines aim to trick the body by introducing dead or weakened pathogens in an attempt to trigger the adaptive immune system to produce antibodies. It is possible to create immunity to a pathogen through vaccination and allowing antibodies to be created by your body’s adaptive immune response. Sometimes this works and sometimes it does not.

Creating antibodies means you must go to battle. Going into battle with a weak immune system is a serious risk! Having a strong, adaptive and resilient immune system is a powerful barrier to protect against bacterial, viral, and other threats.

We Damage Our Immune Systems

At the foundation of the immune system is the gut microbiome, which houses 70-80% of the immune system. In America we have embraced all sorts of things that weaken the gut microbiome: antibiotics, preservatives, GMOs, Roundup residues, high sugar diets, highly processed foods….these are all destructive to the gut microbiome and therefore they compromise the immune system. For instance, antibiotics weaken the innate immune system by disrupting the gut microbiome such that neutrophils and white blood cells are no longer able to react properly when threats arise. Antibiotics also weaken the adaptive immune system by reducing immunity to subsequent infection. Food additives such as preservatives effect immune cells and the inflammatory response, thus contributing to the development of comorbidities. Over the longer life experience, exposure to these foods and threats often manifests as chronic disease including diabetes, obesity, arthritis, asthma, whole body inflammation, heart disease etc.

Raw Milk and Milk Kefir Strengthen the Immune System

Nutrition is of prime importance in strengthening the immune system. Raw milk plays a very important part in building and strengthening both the innate and adaptive immune systems. Studies performed in Europe have shown that children who drink raw milk have decreased rates of asthma, allergies, eczema, ear infections, fever, and respiratory infections. These benefits are likely related to the active immune factors, biodiversity, prebiotics, intact protective proteins and other elements found in raw milk. Pasteurized milk does not confer these protective properties because the beneficial raw proteins and enzyme-based elements are denatured and inactivated by heat. Raw milk also contains antibodies which can be beneficial for the immune system.

Raw milk kefir is packed full of biodiversity and contains immune factors from the raw milk. Raw milk kefir is a powerful immune-building food which has been shown to stimulate and modulate the immune system, have a beneficial effect on the composition of the gut microbiome, and reduce allergies. Fermented milk has also been shown to reduce the duration of respiratory infections and colds in the elderly.

Raw Milk Is Similar to Breastmilk

Researchers have likened the protective effects of raw milk to those of breastmilk. Breastmilk is raw milk! Many “agents with beneficial anti-microbial or immune-modulatory effects are shared in bovine and human milk, such as immunoglobulins, cytokines, growth factors, lactoferrin, oligosaccharides, and milk fat globule membranes.”

A recent study of breastmilk from mothers with COVID19 in New York found that the breastmilk contained antibodies to COVID19. This means that infants of mothers infected with COVID19 would receive immunity-building properties directly through breastmilk. Similar effects have been demonstrated with hyperimmune cow’s milk, which has been shown to contain specific antibodies that may boost the immune system. When cows are purposely exposed to pathogens during the dry period, their colostrum contains antibodies to those pathogens for their calves at birth. Research at UC Davis is now investigating whether hyper-immune milk can be produced to protect humans from COVID19.

Raw milk is the first food of life. Its role is not just nourishment; raw milk protects the baby by building the immune system and contributing to a powerful gut microbiome. Over thousands of years of evolution, raw milk has been tested and refined by the trials of successive generations which allow only the best to thrive. The numerous immune system factors present in raw milk intentionally strengthen the baby’s weak immune system, with elements needed for both the innate and adaptive immune systems.

Personal Responsibility for Our Immune Systems

Personal responsibility is critical in building strong immune systems. A strong gut microbiome should be the goal of anyone looking for long-term immune system strength and the subsequent immunity that this brings. Doctors cannot help us with this. We must take responsibility for our own health by purposely building and keeping our immune systems strong. We can care for our gut microbiomes by providing them with whole foods which nourish our biodiversity. Like breastmilk, raw milk and raw milk kefir are self-contained immune system building super foods. Four variables must align in order for a pathogen to make you sick. You have control over the HOST variable and perhaps can reduce the load variable. You are very much in charge of your health and your ability to adapt to all threats, today and into the future.  Drink up your delicious raw milk and thrive!

Raw Milk, Asthma, and Lung Health

There are multiple peer-reviewed, scientific studies which correlate raw milk with improved lung health, both in childhood and adulthood.

Children Who Drink Raw Milk Have Less Asthma

Several large epidemiological studies of European children have found correlations between raw milk consumption and decreased rates of asthma.

PARSIFAL Study

The PARSIFAL study was designed to look at allergy risk factors in children. This large study of over 14,800 European children (from Austria, Germany, the Netherlands, Sweden, and Switzerland) investigated asthma and allergic diseases in relation to children’s exposure to different environments (farms, rural, suburban) and farm-fresh foods (such as raw dairy products, eggs, and vegetables). The PARSIFAL data relating to asthma and raw milk were published in December 2006 in the Journal of Clinical and Experimental Allergy [1].

The PARSIFAL study concluded that there is a "significant inverse association between farm [raw] milk consumption and childhood asthma." The study found that, regardless of which environment the children lived in, those children who drank raw milk had significantly lower rates of asthma than children who did not drink raw milk.

GABRIELA Study

The GABRIELA study was designed to investigate the genetic and environmental causes of asthma.  This study included over 8,000 European children (from Germany, Austria, and Switzerland), and was published in the Journal of Allergy and Clinical Immunology in August 2011 [2]. In this study, raw milk consumption was compared to consumption of boiled/pasteurized milk, and the level of exposure to raw milk in utero through school age was also accounted for. The study also looked into the children’s exposure to farm environments as a possible variable related to rates of asthma.

The GABRIELA study found that raw milk consumption is associated with significantly lower rates of asthma, and that this beneficial effect is independent of other farm exposures. It was found that early exposure to raw milk (at <1 year of age) and daily consumption of raw milk increased the beneficial effect in children who drank a mixture of raw milk and pasteurized milk. The consumption of only pasteurized milk “was not associated with any health outcome.”

PASTURE Study

The PASTURE study followed children from birth to age 6 years in order to gain a better understanding of the effects of raw milk consumption on asthma. This study of over 900 European children (from Germany, Austria, Switzerland, Finland, and France) was published in January 2016 in the Journal of Allergy and Clinical Immunology [3].

The PASTURE study concluded that, "Continuous farm [raw] milk consumption in childhood protects against asthma at school age." This study found that raw milk’s “beneficial effect on asthma increases over time. Recent consumption of farm milk seems to be more relevant than consumption in the first years of life, which extends the concept of early prevention to sustained prevention until school age and beyond.” 

It’s Not the “Farm Effect,” It’s the Raw Milk!

Some of the research correlating decreased asthma with raw milk consumption has been criticized as actually demonstrating that living on a farm is associated with decreased rates of asthma. However, several of the studies specifically analyzed the effects of living environments, and found that the beneficial effects of raw milk on asthma were indeed present even in children who did not live on farms.

Furthermore, a recent meta-analysis of eight health studies related to raw milk was published in the November 2019 issue of the Journal of Allergy and Clinical Immunology [4]. A meta-analysis is a quantitative statistical analysis which combines the results of multiple scientific studies, thereby allowing the researchers to derive overall conclusions about that body of research. The recent meta-analysis, written by a team of researchers from the Netherlands and Germany, concluded that when taken as a whole, the body of data from the previous studies shows that raw milk consumption in childhood has a protective effect on asthma “independent of other farm exposures and that children not living on a farm can theoretically profit from this effect.” 

Adults Who Drank Raw Milk in Childhood Have Better Lung Function

Agricultural Lung Health Study

There is evidence that raw milk’s beneficial impacts on lung health are not isolated to childhood. Evidence that raw milk has a beneficial effect on adult lung health is seen in the Agricultural Lung Health Study, which is part of the larger Agricultural Health Study that was designed to investigate how agricultural, lifestyle and genetic factors affect the health of farmers.  The Agricultural Lung Health Study data relating to lung health and raw milk were published in March 2018 in the journal Thorax [5].

This study investigated lung function in over 3,000 USA older adults, with a mean age of 63 years.   It was found that "raw milk consumption, particularly early in life, is associated with better pulmonary [lung] function in adulthood." This study found that childhood raw milk consumption was correlated with “higher forced expiratory volume” and higher “forced vital capacity”, leading the researchers to conclude that “the beneficial effect of raw milk is predominantly on lung growth.”

Low-Risk Raw Milk as a Therapeutic Tool

It is clear from all of this research that raw milk consumption is correlated with improved lung health.  Children who drink raw milk have lower rates of asthma, and childhood raw milk consumption leads to improved lung health that lasts into older adulthood. There is a growing body of evidence that raw milk is a low-risk food when it is produced carefully and intentionally [6, 7]. Thus, low-risk raw milk can be a powerful therapeutic tool for improving lung health.

References

[1] Inverse association of farm milk consumption with asthma and allergy in rural and suburban populations across Europe. Clinical and Experimental Allergy. 2007; 37(5):661-70. Waser M, Michels KB, Bieli C, Flöistrup H, Pershagen G, von Mutius E, Ege M, Riedler J, Schram-Bijkerk D, Brunekreef B, van Hage M, Lauener R, Braun-Fahrländer C; PARSIFAL study team. https://www.ncbi.nlm.nih.gov/pubmed/17456213

[2] The protective effect of farm milk consumption on childhood asthma and atopy: The GABRIELA study. Journal of Allergy and Clinical Immunology. 2011; 128 (4): 766-73. Loss G, Apprich S, Waser M, Kneifel W, Genuneit J, Büchele G, Weber J, Sozanska B, Danielewicz H, Horak E, Joost van Neerven RJ, Heederik D, Lorenzen PC, von Mutius E, Braun-Fahrländer C; GABRIELA study group. https://www.jacionline.org/article/S0091-6749(11)01234-6/fulltext

[3] ω-3 fatty acids contribute to the asthma-protective effect of unprocessed cow's milk. Journal of Allergy and Clinical Immunology. 2016; 137 (6): 1699-1706. Brick T, Schober Y, Böcking C, Pekkanen J, Genuneit J, Loss G, Dalphin JC, Riedler J, Lauener R, Nockher WA, Renz H, Vaarala O, Braun-Fahrländer C, von Mutius E, Ege MJ, Pfefferle PI; PASTURE study group. https://www.jacionline.org/article/S0091-6749(15)01731-5/fulltext

[4] The Beneficial Effect of Farm Milk Consumption on Asthma, Allergies, and Infections: From Meta-Analysis of Evidence to Clinical Trial. Journal of Allergy and Clinical Immunology: In Practcice, 2019. 8 (3): 878-889. Brick T, Hettinga K, Kirchner B, Pfaffl MW, Ege MJ. https://www.ncbi.nlm.nih.gov/pubmed/31770653

[5] Raw milk consumption and other early-life farm exposures and adult pulmonary function in the Agricultural Lung Health Study. Thorax, 2018; 73:279-282. Wyss AB, House JS, Hoppin JA, et al. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5758444/

[6] Recent Trends in Unpasteurized Fluid Milk Outbreaks, Legalization, and Consumption in the United States. PLOS Currents. 2018; 10. Whitehead J, Lake B. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6140832/#ref27

[7] Raw milk producers with high levels of hygiene and safety. Epidemiology and Infection, 2020; 148, e14, 1-7. Berge AC, Baars T. https://www.ncbi.nlm.nih.gov/pubmed/32000877

Build Immune System Strength With Whole Foods: Drink Raw Milk!

America invested $3 billion dollars and spent 13 years between 1990 and 2003 to figure out what makes us genetically human. The research project focused on discovery of the genes and genetic code that makes us what we are.  This work was funded by Congress and led by the Department of Energy and the National Institutes of Health. The findings were not quite as expected.  

Our parents gave us each about 20,000 genes that give us our basic structure and shape. That was the easy part.  That is our “hardware”. However, the “software” that runs our human machine gets a little tricky. It becomes very complicated and even inconvenient.

Rob Knight, founder of the Center for Microbiome Innovation and Professor of Pediatrics at the University of California San Diego, describes that,

“You’re more microbe than you are human.”

On a cellular level, we are only 43% human, with the balance of our cells being bacteria, viruses, and fungi. Genetically, our 20,000 human genes are vastly outnumbered by 2,000,000 to 20,000,000 microbial genes, which are mainly coming from bacteria. And most of these bacteria make their home in our gut.

At the cellular level, genetic information is shared between human cells and microbial cells. Genetic information is freely traded, exchanged and swapped around as an essential part of life and cellular function. The essential bacterial genetic information acts as “software” for the human cells, regulating the immune system, digestion, and manufacture of vital vitamins. This is how our human micro-biome functions.  

I like to say “we are Bacteriosapiens”.  What does this mean in real terms? How do we apply advanced science and use this information to better our lives? The bottom line is this:

We have great control over our optimal health.

We are not narrowly driven by the genes our parents passed to us. Those genes are important, but they are only a sliver of the genetics that truly drive our human machine. How we live our lives has tremendous impact on our microbiome and therefore our health. Were we breast fed, were we born by C-Section, did we receive heavy antibiotics early on? That’s just for starters. What we were fed as children and how do we continue to eat today? Don’t get into a guilt trip. That’s all old history. You can start fixing it today.

According to Dr. Anahid Jewett PhD at UCLA:

The healthy gut biome needs two things to reduce inflammation and keep you healthy:

• A load of biodiverse bacteria

• The whole foods that feed them

It comes down to nurturing our beneficial bacteria!  How do we get good bacteria to hang out, colonize our bodies, and become our very best genetic friends? How do we get and keep our genetic software so our human cells can make good decisions and keep us healthy?  Beneficial bacteria don’t hang around very long if we don’t offer them breakfast, lunch and dinner.

What nourishes our beneficial bacteria?  Whole foods do. What is a whole food? A whole food is a food that is unprocessed and complete. Nothing taken away and nothing added. Whole foods grow right out of good healthy soils which are teaming with earthworms, fungi, and bacteria. Whole foods come right out of the cow or straight from a well-nourished animal.

Americans don’t eat many whole foods. Instead we eat the Standard American Diet (SAD). In doing so, we starve and deprive our beneficial bacteria! In fact, we Americans love our antibiotics, pharmaceutical drugs, preservatives, sugar rich foods, long shelf life foods and GMOs. Highly processed foods and chemicals are destructive to our gut biome and the bacterial diversity required for genomic health. So what does that leave us? Its leaves us with “hardware and no software to drive it”. We become genetically inept at the cellular level.  We develop a whole range of diseases, including allergies, leaky gut, autoimmune disorders, depression, autism, and more. It’s really SAD.   

Nourishing and healing our gut microbiome requires moving away from processed foods and pharmaceuticals, and instead moving towards whole foods.

Raw milk, raw cheese, raw butter, raw cream and raw kefir are whole gut biome superfoods. They seed the gut with diverse beneficial bacteria, while providing the enzymes, proteins, minerals, and good fats that bacteria love to eat. They are whole foods with biologically active elements and protein systems that protect the gut, and build and maintain our immune system. They are the first foods of life!  Add fresh or fermented vegetables, grass-fed beef, chicken, eggs, and other direct-from-the-farm foods to make your bacteriosapien thrive!

Follow-on studies to the Human Genome Project continue today, including the Human Microbiome Project and the American Gut Project. It has become quite the clash of titans. The current medical and food processing establishments find this information to be extremely inconvenient. If bacteria are critical to life, then what are we doing with all the antibiotics? Sugars grow candida yeast and disrupt normal healthy bacterial colonization. Preservatives kill off bacteria in foods to extend shelf life and cause damage to the gut bacterial colonies. So does the widely-used glyphosate Round-up!

In the current ongoing Coronavirus Pandemic, we have seen the lack of resilience in our gut biomes and immune systems.

While some people are not affected by Coronavirus others become deathly ill or worse.  We don’t know exactly why there is such a difference in these outcomes and pathways. We have been given a big hint, though: in general, medical professionals tell us that COVID19 illness seriously effects those with compromised immune systems and poor health status.

When COVID19 is over, new threats will emerge. Viruses and bacteria continually evolve and adapt. Our immune system and gut biome must dynamically do the same. We must be adaptive and resilient to be able to address the ever present and evolving threats that will come to visit us. Will your immune system and genomics be up to the new threat?  Vaccines are always late, come after the fact, and don’t have the most effective track record. A healthy adaptive resilient immune system is with you and working all the time.

There is a long list of studies that confirm the health benefits of raw milk. These benefits include significantly fewer colds (which are viral illnesses), less asthma, fewer ear infections, reduction of eczema, less allergies, and stronger general health. These findings confirm that:

Those who eat a whole food diet and consume raw dairy products have more adaptive and resilient immune systems.

Get to know your bacterial self. You are not alone. Give your new best friends breakfast, lunch, and dinner. They won’t ever let you down if you feed them well.

Drink your raw milk and eat your whole foods! Cherish your new bacterial friends. They are the healthy you!

FAQ About Raw Milk and COVID19

Got questions about raw milk and COVID19? We’ve gotcha covered!

• Can I catch COVID19 by drinking raw milk?

• Does raw milk strengthen the immune system?

• Does raw milk support lung health?

• Is raw milk healthier than pasteurized milk?

• I thought raw milk was unsafe. Isn’t pasteurization necessary for safety?

• Where can I find tested, low-risk raw milk?

• What if there aren’t any Raw Milk Institute LISTED dairies near me?

Check out questions and answers about raw milk and COVID19 here:

RAWMI Ripple - January 2020

January 2020 Edition

Dear Friend,

Welcome to the January 2020 edition of the Raw Milk Institute (RAWMI) Ripple. Herein you'll find information about the latest in the world of raw milk, including a new meta-analysis on the protective health effects of raw milk, the Interstate Milk Freedom Act, RAWMI training, and additional resources for raw milk education.

Meta-Analysis of Raw Milk Effects on Asthma, Allergies, and Infections

A recent issue of the Journal of Allergy and Clinical Immunology: In Practice published a peer-reviewed meta-analysis of eight health studies related to raw milk. A meta-analysis is a quantitative statistical analysis which combines the results of multiple scientific studies, thereby allowing the researchers to derive overall conclusions about that body of research.

The November 2019 paper, titled “The Beneficial Effect of Farm Milk Consumption on Asthma, Allergies, and Infections: From Meta-Analysis of Evidence to Clinical Trial” was written by a team of researchers from the Netherlands and Germany. The meta-analysis concluded that, when taken as a whole, the body of data from the previous studies shows that raw milk consumption in childhood has a protective effect on asthma, current wheeze, allergic rhinitis (hay fever), and atopic sensitization (allergies to environmental triggers).

When the previous raw milk studies were criticized, the detractors instead attributed the protective health effects to the farm environment rather than raw milk. However, the 2019 meta-analysis shows differently: “The effect particularly on asthma was observed not only in children raised on farms (OR, 0.62; 95% CI, 0.58-0.82) but also in children living in rural areas but not on a farm (OR, 0.60; 95% CI, 0.48-0.74). This demonstrates that the effect of farm milk consumption is independent of other farm exposures and that children not living on a farm can theoretically profit from this effect.” 

Interstate Milk Freedom Act HR 5410

It is currently illegal to sell raw milk across state lines in the United States. The FDA’s ban on interstate raw milk harms small farms as well as informed consumers, who purposely seek out raw milk for its health benefits and superb taste. The Interstate Milk Freedom Act HR 5410 seeks to prohibit federal interference with the interstate sale of raw milk. This bipartisan bill was sponsored by Representatives Thomas Massie (Republican from Kentucky) and Chellie Pingree (Democrat from Maine).

“Federal agencies, such as the FDA, that are part of the executive branch do not and should not have the power to shut down trade between peaceful farmers and willing consumers. It is Congress’s job to legislate,” said Rep. Massie. “Our Interstate Milk Freedom Act would make it easier for families to buy milk of their choice by reversing the criminalization of specific dairy farmers.”

“So many people across the country want to make sure their food is fresh and local—including fruits, vegetables, and even their milk,” said Rep. Pingree. “Raw milk is currently the only food banned for interstate commerce—an onerous regulation that hurts small farmers for selling milk straight from their cows to the consumer.”

It is time for the ban on interstate raw milk to be overturned. Ask your representatives to support HR 5410.

Northeast USA RAWMI Training

Studies have shown that raw milk has superb nutrition and protective health effects, but raw milk needs to be carefully and intentionally produced in order to ensure that it is a low-risk food. Through education, outreach, and research, RAWMI is working towards universal access to safe raw milk for everyone.

Earlier this month, RAWMI held raw milk training sessions at Rutgers University, the Northeast Organic Farming Association (NOFA) Massachusetts, and NOFA New York. These presentations focused on raw milk benefits as well as risk management for the production of safe, low-risk raw milk. 50 dairy farmers attended these three training sessions.

On February 6, 2020, RAWMI will be providing a 3&1/2 hour presentation on raw milk risk management at the Pennsylvania Association for Sustainable Agriculture (PASA) conference in Lancaster Pennsylvania. Mark McAfee, Sarah Smith, Dr. Joseph Heckman, and Edwin Shank will be presenting at this event.

International Milk Genomics Consortium Conference

The 16th International Milk Genomics Consortium (IMGC) Symposium was held on November 12-14, 2019 in Aarhus Denmark. This conference focused on milk and health from a sustainability perspective, with a wide variety of presentation topics including environmental challenges in milk production, effects of breastmilk and ruminant milk on the gut microbiome, structure and function of milk, and the superb nutrition of whole foods versus supplements.

The Raw Milk Institute was an official sponsor of this IMGC Symposium and provided sponsorship to Dr. Joanne Whitehead in attending to present her peer-reviewed, published raw milk risk analysis poster depicting the positive impact of “high standards, farmer training and frequent testing” on raw milk risk reduction.

New Resources for Raw Milk Education

The Raw Milk Institute has developed several new resources for educating people about raw milk.

RAWMI’s letter to medical professionals about the benefits and safety of raw milk provides a comprehensive summary of the latest science on the nutritional and health benefits of raw milk, therapeutic use of raw milk, the negative impacts of pasteurization, and the safety of raw milk.

In response to a request from RAWMI LISTED farmers, RAWMI has also developed a new trifold brochure about the benefits of raw milk. This brochure can be used at the point-of-sale or online to increase awareness of the benefits of raw milk. Email sarah@rawmilkinstitute.org if you want to make use of this brochure.

LISTED Farmers Quarterly Meeting

RAWMI LISTED farmers are able to connect and share with other raw milk farmers during quarterly video conferences. At the most recent video conference, farmers from 11 RAWMI LISTED dairies discussed issues including challenges to exclusive grass-feeding, recent problems and lessons learned, marketing, and the erosion of the “organic” label.

Ancient Baby Bottles Reveal Ruminant Milk Being Fed to Children

Raw milk has been nourishing children for millennia! The oldest baby bottle-like vessel found thus far is nearly 8,000 years old. Recently, three independent lipid analyses of residue from ancient baby bottles has been performed. These analyses have provided evidence that ruminant milk (such as cow, sheep, or goat milk) was being fed to children thousands of years ago.

Take care all of you RAWMI producers, consumers and all of you interested in raw milk!