Summary
The New York Times Sunday Read presents a nuanced investigation into the raw milk debate, examining both the genuine science behind the farm effect and the real dangers of unpasteurized dairy. The article traces how European epidemiological research from Switzerland, Austria, and Germany has documented that children raised on farms have significantly lower rates of allergies and asthma, with raw milk consumption identified as an independent protective factor. Mouse studies from Utrecht University showed raw milk dampened allergic reactions to egg protein and dust mites. However, the piece emphasizes that between 1998 and 2018, at least 2,645 people fell ill from raw milk, and no researcher recommended drinking it due to the risks. Scientists suggest that new processing technologies like UV radiation and membrane filtration could preserve milk's protective qualities while eliminating pathogens.
Key Points
- European farm effect studies show children on farms are about one-third as allergic as non-farming peers
- Raw milk consumption appears to be an independent protective factor against allergies, separate from farm environment exposure
- Mouse studies at Utrecht University found raw milk dampened allergic reactions to egg protein and dust mites; heat-treated milk did not
- Children drinking raw milk had a 30% reduction in symptomatic colds in the first year of life
- Raw milk may fine-tune the gut microbiome to produce more butyrate, which correlates with lower asthma risk
- Raw dairy products are 840 times as likely as pasteurized to cause infection, per the CDC
- No researcher studying the farm effect recommends drinking raw milk due to the pathogen risks
- Scientists are exploring UV radiation, membrane filters, and minimal heat processing to preserve raw milk's benefits safely
Key Moments
Farm effect research shows children on farms have one-third the allergy rate
European epidemiological research starting in the late 1990s documented that children raised on farms had about one-third the rate of allergies compared to non-farming peers, with more intensive farming correlating with greater protection.
"Children on farms were about one-third as allergic as measured by specific antibodies in their blood and their propensity for sneezing attacks during hay fever season as their non-farming peers in the same rural areas."
Mouse studies show raw milk dampens allergic reactions
Utrecht University researcher Betty von Esk found that giving mice the equivalent of two glasses of raw milk daily for eight days greatly dampened allergic reactions to egg protein and dust mites, while heat-treated milk did not have this effect.
"In a food allergy experiment, giving mice the human equivalent of two glasses of raw milk a day for eight days greatly dampened the allergic reaction to egg protein."
Raw dairy is 840 times more likely to cause infection than pasteurized
Despite possible allergy-prevention benefits, the CDC data shows unpasteurized dairy products are 840 times as likely as pasteurized to cause infection and illness, and no researcher studying raw milk recommends drinking it.
"Unpasteurized dairy products are 840 times as likely as their pasteurized counterparts to lead to infection and illness, according to the Centers for Disease Control and Prevention."
Scientists exploring UV and membrane filtration to preserve raw milk benefits
Scientists suggest that new processing technologies like ultraviolet radiation, membrane filters, and minimal heat processing could preserve raw milk's protective qualities while eliminating dangerous pathogens.
"Using ultraviolet radiation to kill pathogens in milk, for example, or membrane filters to remove them."
