Check out the paper itself. It's open access and a relatively easy read.

https://mbio.asm.org/content/12/2/e00579-21


Here are two other papers on ketogenic diets and gut health, although they are mouse models
April 2021: Ketogenic diet alleviates colitis by reduction of colonic group 3 innate lymphoid cells through altering gut microbiome

https://www.nature.com/articles/s41392-021-00549-9.pdf

August 2019: Ketone Body Signaling Mediates Intestinal Stem Cell Homeostasis and Adaptation to Diet

https://pubmed.ncbi.nlm.nih.gov/31442404/

Gosh! Yes, I should have brushed my hair! It's been a rough day but no time to re-record, you'll just have to deal with it. (And maybe feel better about your next bed head)