Beer

“A research ethics committee at the National Institutes of Health told Buck he couldn’t experiment on himself by drinking the beer.”

This just in: the NIH is against fun.

No one tell them about this legend

https://en.wikipedia.org/wiki/Barry_Marshall

Marshall, after having a baseline endoscopy done, drank a broth containing cultured H. pylori, expecting to develop, perhaps years later, an ulcer.[16] He was surprised when, only three days later, he developed vague nausea and halitosis, due to the achlorhydria.

On a similar note, some years, ahem decades, back I had come across a probiotic yeast called S. boulardii. It was a tad bit expensive, which got me thinking, “how do they make this stuff, anyway?” It’s yeast, and I know yeast love to grow on sugar. Thus was born probiotic hard cider. And there was much rejoicing!