Why people are drinking raw milk despite the risks

HostFor about a hundred years, we have taken it for granted that the milk we buy is safe because it has been heated up to kill off any germs. It was one of the biggest wins for public health in history. But lately, more and more people are going out of their way to find milk that hasn't been treated at all. Why are we suddenly seeing this huge push to go back to the way things were before the rules changed?

GuestIt really comes down to a deep distrust of how our food is made today. A lot of people feel like the more we do to our food, the worse it's for us. They look at a carton of store milk as something that has been stripped of its life. To them, raw milk is a whole food. It has all these natural fats and proteins that stay in their original shape because they haven't been blasted with heat. There's this idea that raw milk is full of good bacteria and enzymes that help your stomach work better or even cure allergies. People want to feel a connection to the farm and they think the raw version is just more honest. It's part of this bigger movement where anything labeled as natural or unprocessed is seen as much better for you, no matter what the old warnings say.

HostBut those warnings exist for a reason. Is there any truth to the idea that raw milk is actually better for your gut or that it helps people who usually get sick from dairy?

GuestThat's the big sticking point. If you talk to people who drink it, they'll tell you they feel great and that their skin cleared up or their bloating went away. But when scientists actually put those claims to the test, the numbers don't back it up. They have done studies where they give people raw milk and regular milk without telling them which is which. In those tests, people with milk troubles had the same issues with both types. As for the good stuff like vitamins and enzymes, the heating process called pasteurization does change things a tiny bit, but not enough to matter for your health. You still get the same calcium and protein from the milk at the grocery store. The biggest myth is about those enzymes. Your stomach is full of acid that breaks those down anyway, so even if they're in the milk, they're not doing much for you once you drink them.

HostSo if the health gains are mostly just a feeling people have, why is it becoming so much easier to buy? It used to be you had to know a guy at a farm, but now it seems like it's showing up in more places.

GuestThe laws are shifting because of a lot of pressure from voters who want the right to choose what they eat. Some states now let farms sell it directly to people, and others let you buy a share of a cow so you technically own the milk it makes. It creates this sense that if it's legal to sell, it must be fine. But here is the thing about milk. It's the perfect home for germs. It's warm, it's wet, and it's full of sugar and fat. Even on the cleanest farm with the happiest cows, poop can get into the milk during the milking process. You can't see it, and you can't smell it. We're talking about bugs like listeria or salmonella that can put a healthy person in the hospital or even be deadly for kids. Since 1987, the government has banned selling it across state lines for human drinks, but people find ways around it by labeling it as pet food or just driving across the border to get it.

HostIt feels like a lot of work for something that could make you that sick. Does the risk change when there's something new in the mix, like the bird flu we have been hearing about in cows lately?

GuestThat has changed the conversation in a big way. For a long time, the risks were the usual suspects like campylobacter. But now, we're seeing this high-strength bird flu show up in dairy herds across several states. When scientists look at the milk from those sick cows, it's loaded with the virus. The heat from regular processing kills that virus easily, so the milk in the store is still safe. But in raw milk, the virus is still active. We found that about one in five milk samples from grocery stores had bits of the virus in them, which shows how common it's in the herds, even if the heat made those specific samples safe to drink. If you drink that raw, you're basically handing a virus a direct path into your body. We don't know for sure yet how easily this specific flu can jump to humans through drinking, but it's a massive gamble.

HostIt seems like we're in this spot where our desire for something natural is hitting a wall of very real, very modern biology.

GuestThe biggest danger is that we have forgotten what the world looked like before we started heating our milk, back when thousands of people died every year from things like cow tuberculosis.

HostThat cold glass of milk on the table looks a lot different when you think about the invisible world of germs that the heat was meant to protect us from in the first place.