[eigenrick]

I'm a bit concerned that they don't mention a particular strain of B. Subtilis.

There are hundreds of documented strains, and they don't all eat/produce the same things (at least not in the same ratios)

Some have been documented to reduce inflammation and restore tight-junction function in epithelial walls (where other strains did not).

Others have been shown to reverse the accumulation of α-synuclein. That has been implicated as a cause or symptom of Parkinson's disease.

[lepus]

The reference paper says it's MB40: https://pubmed.ncbi.nlm.nih.gov/36646104/

[jtbayly]

Are you saying that some are good and some are bad strains?

[zabzonk]

like many, many bacteria, b.subtilis can infect you in bad ways, particularly if you are immune-compromised. in general, it is probably not a good idea to mess with your body's microfauna, which normally balances itself, unless you have a patent infection, in which case you want antibiotics.