People drink raw milk because they believe it’s healthier, easier to digest, and more flavorful than pasteurized milk. In the largest survey of raw milk consumers, 56% said they chose it because they considered it more healthful and easier on their stomachs. A smaller group said it simply tasted better. These beliefs have fueled growing interest in unpasteurized dairy, even as the safety risks remain well documented.
The Main Reasons People Give
A survey of 153 raw milk drinkers, published in Global Advances in Health and Medicine, found three consistent motivations. The most common, cited by a clear majority, was the belief that raw milk is more nutritious and gentler on digestion. Others pointed to taste, describing raw milk as richer and more complex than its pasteurized equivalent. And a smaller group was drawn to the idea of consuming food in its most natural, unprocessed form, part of a broader movement toward minimally processed diets.
These motivations overlap with a wider cultural shift. Many consumers have grown skeptical of industrial food processing and view pasteurization as stripping milk of something valuable. The appeal is partly nutritional, partly philosophical: raw milk represents food the way it existed before modern intervention.
What Pasteurization Actually Changes
Pasteurization does alter milk’s composition, though not as dramatically as some raw milk advocates suggest. A systematic review and meta-analysis found that standard pasteurization significantly reduces levels of vitamins B1, B2, C, and folate. Vitamin B12 and vitamin E also decreased. Vitamin A, interestingly, increased slightly. Vitamin B6 showed no meaningful change.
These losses sound concerning in isolation, but context matters. Milk is not a major dietary source of vitamin C or folate for most people. The vitamins milk is best known for, calcium and vitamin D (which is added through fortification, not naturally present in significant amounts), are unaffected by pasteurization. The nutritional differences between raw and pasteurized milk are real but modest, and unlikely to matter in the context of a varied diet.
The Digestibility Question
Perhaps the most persistent claim is that raw milk is easier to digest, especially for people who are lactose intolerant. The logic sounds reasonable: raw milk contains bacteria like Lactococcus lactis that can help break down lactose, and these bacteria are killed during pasteurization. Raw milk may also contain small amounts of lactase, the enzyme that digests lactose, though this remains controversial among researchers.
The problem is that when scientists tested this directly, the benefit didn’t hold up. A randomized controlled trial published in the Annals of Family Medicine gave lactose-intolerant adults raw milk, pasteurized milk, and soy milk over an eight-day period, then measured both hydrogen breath levels (a standard marker of lactose malabsorption) and symptom severity. Raw milk performed no better than pasteurized milk on either measure. Symptom scores were essentially identical. Both dairy milks caused more symptoms than soy milk.
The study’s conclusion was blunt: the results do not support the widespread claim that raw milk reduces lactose intolerance symptoms. Whatever beneficial bacteria raw milk contains, they don’t appear to survive the acidic environment of the stomach in large enough numbers to make a digestive difference.
What the Safety Data Shows
The risks of raw milk are not theoretical. Between 2009 and 2021, the CDC documented 143 disease outbreaks confirmed or suspected to be linked to raw milk consumption. The pathogens involved include Campylobacter, Salmonella, E. coli, Listeria, and Cryptosporidium. Symptoms typically include diarrhea, stomach cramping, and vomiting, but severe outcomes do occur. Some infections can progress to kidney failure, paralysis from Guillain-Barré syndrome, or stroke.
A single outbreak illustrates the scale. Between September 2023 and March 2024, commercially distributed raw milk in California caused 171 confirmed and probable Salmonella infections across five states. Of the patients with hospitalization data available, 14% required hospital care, and 82% of those hospitalized were children under 18. Children, pregnant women, older adults, and anyone with a weakened immune system face the highest risk from raw milk pathogens.
For comparison, California reported zero outbreaks linked to pasteurized milk during the same multi-year period in which it tracked four confirmed and three suspected outbreaks from raw milk. Pasteurization was developed specifically to eliminate these pathogens, and it remains extremely effective at doing so.
Why the Trend Keeps Growing
If the digestibility claims don’t hold up in clinical testing and the safety risks are clear, why does raw milk keep gaining popularity? Part of the answer is that personal experience is powerful. When someone switches to raw milk and feels better, they attribute the improvement to the milk itself. But other variables could explain it: they may be drinking less milk overall, sourcing it from a different breed of cow, consuming it more freshly, or simply paying closer attention to their diet.
Trust also plays a role. Many raw milk consumers have more confidence in a local farmer they can visit than in a large-scale industrial dairy operation. Buying directly from a farm feels transparent in a way that a carton from a grocery store does not. This isn’t irrational. It reflects a genuine desire for connection to food sources, even if it doesn’t change the microbiology of what’s in the glass.
Social media has accelerated the trend considerably. Influencers and wellness figures promote raw milk as part of an “ancestral” or “traditional” diet, framing pasteurization as an unnecessary modern intervention. These messages reach millions of people and carry an emotional weight that CDC outbreak statistics often don’t match. The narrative of reclaiming natural food from corporate processing is compelling, and it taps into real frustrations with the modern food system, even when the specific health claims don’t survive scientific scrutiny.