Purely anecdotal but, I've been expirmenting drinking and making kefir and fermented veggies (mostly spinach). After a few days, my digestive system was the most regular it's ever been. I feel happier too but correlation vs causation and what not.
True, and people are investigating new ideas about dietary fiber thinking that perhaps it's not just for "bulk" and helping keep things "regular":
https://www.ncbi.nlm.nih.gov/pubmed/29902436
"In this review, we will focus on dietary fibers, which interact directly with gut microbes and lead to the production of key metabolites such as short-chain fatty acids, and discuss how dietary fiber impacts gut microbial ecology, host physiology, and health."
I though it was already known that soluble fiber contributes to microbiome health (and not much to motility) and insoluble fiber is mostly helpful for bulk and motility.
Does this study address the role of insoluble fiber in microbiome health?
Spinach is great but don’t overdo it. The high oxalate content can cause problems for some people. Good to get a variety of different greens, of course including spinach.
