Modern city dwellers have lost about half their gut microbes

Re:Modern city dwellers have lost about half their gut microbes by starwind on Thursday June 30, 2022 @07:00PM (#31939782)

You are correct. It's likely that the majority of humans have been lactose intolerant for human history. It's primarily people of Northern European descent that are not lactose intolerant, but lactose intolerance is very common outside of those groups

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Re:Modern city dwellers have lost about half their gut microbes by hprotagonist on Thursday June 30, 2022 @07:08PM (#31939866)

and west african; by two entirely separate mechanisms, which i’ve always found to be quite cool.

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Re:Modern city dwellers have lost about half their gut microbes by chimeracoder on Thursday June 30, 2022 @07:12PM (#31939904)

> and west african; by two entirely separate mechanisms, which i’ve always found to be quite cool.

What's the separate mechanism? I'm only aware of one set of genes coding for adult lactase production.

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Re:Modern city dwellers have lost about half their gut microbes by hprotagonist on Thursday June 30, 2022 @07:38PM (#31940159)

https://pubmed.ncbi.nlm.nih.gov/17159977/

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Re:Modern city dwellers have lost about half their gut microbes by flir on Thursday June 30, 2022 @08:54PM (#31940759)

I wonder if there's any advantage to inheriting both mechanisms.

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