Thanks for the comment. I honestly can't say how I've managed to keep my gut microbiome happy except that my bowel health is absolutely fine now. I don't think fiber and fruits/veggies are necessary. If you want specifics - I have a very small bowel movement every 3 or 4 days, easy-peasy, never any problems. This must mean that I'm absorbing most of the food I'm eating. Before, when I believed in eating fiber, whole grains, fruits and veggies, I had huge daily bowel movements.

Dr Shawn Baker, in The Carnivore Diet, has a good section on fiber, how it's not necessary, and how many human populations throughout history have done fine without it.

I actually do have some yogurt (homemade, half heavy whipping cream so it's very rich). But I'm beginning to be less and less convinced that the whole microbiome thing is really a thing. I've been eating yogurt/kefir forever. But the one thing that I can say about going mostly and then almost exclusively carnivore is - it made an IMMEDIATE and very noticeable positive difference in my energy and well-being. Yogurt (supposed to be great for your microbiome) never did that.