Gut Bacteria and KR

Folks may recall earlier post which explored a possible correlation between
KR and mental health
Following that line of inquiry, I am pleased to share that evidence may be
pointing to correlation between gut bacteria and
KR  (ie: if KR is a function of cognition and gut bacteria impact
cognition, then gut bacteria  impact  KR)
https://academic.oup.com/biomedgerontology/article-abstract/75/7/1242/5666188?redirectedFrom=fulltext