Stomach acid literally kills pathogens. So there was a study that was done in 2021, and it showed that people who are blocking stomach acid with these potent drugs called proton pump inhibitors, those people had a two to four fold increased risk of getting sick with COVID when they were exposed to the virus.

Because normally when you have intact stomach acid, you swallow SARS-CoV-2, you can breathe it in, but you can also swallow it. And then that stomach acid unravels a viral protein and inactivates it. And it does it for all kinds of different viruses. It can protect you from polio virus and from different bacteria.

And when I say protect lower incidence compared to not like I'm bulletproof, I have stomach acid, viruses can't make me sick.