The paper is titled “ Combined effects of host genetics *and diet* on human gut microbiota and incident disease…” (emphasis mine). Dairy (and the way some peopl

The paper is titled “ Combined effects of host genetics *and diet* on human gut microbiota and incident disease…” (emphasis mine). Dairy (and the way some people process it, because of genetics) was shown to influence levels of certain bacteria. The study also does not show that removing Morganella resolved depression; the study did not attempt to remove it, and a researcher is quoted as saying it’s not clear how one would do so (last line of the article): > But it’s less clear how Morganella could be eliminated from the gut to relieve symptoms. “That’s a bit more challenging.”