I am so sick of these types of studies popping up and putting out misinformation. It drives me absolutely crazy.. mice are helpful but they are not humans and making dietary recommendations for humans based on mouse studies is a joke. We know for a fact that people all over the word are using a ketogenic or carnivore diet to REVERSE diabetes. Yes, it is anecdotal but this does not mean that it is not happening or that we should dismiss it. It is just overwhelmingly frustrating. I do not have access to the full study so I can not see what they fed the mice but I am sure that just like in other studies like this one, they used plant  oils as the fat which in incredibly inflammatory, and they probably did not exclude carbohydrates which, when combined with fat causes metabolic dysfunction.. The biggest issue though, is that mice are herbivores. They are opportunistic and will eat anything including non food items, but they are obligate plant eaters. You do not have to look any further down their digestive tract than their teeth to know for certain that they were not intended to eat the same diet as humans. It would make sense that a herbivore's microbiome thrives on fiber.
We also know for a fact that certain bacteria that we know live in the human gut, will not survive in the gut microbiome when transplanted. This tells us without a doubt that their microbes are not the same as ours! In another study where mice were fed a diet without fiber, their gut microbes consumed the protective mucus lining in their gut. They try to use that study to tell humans that they should eat more fiber or their gut will suffer but we know this is not true because of all of the people on the carnivore diet who regain their health by eliminating fiber!
What is going on here? Why are they wasting money on these studies when we need well done human trials so that we can put this false information to rest. This all makes me wonder who is paying them to do these studies and put out this information because it seems as if they do not actually want people to get well.